According to Landmarks Preservation Commission 2002, p. 6, short-term tenants and staff rooms were on the second to fifth floors, with long-term residents on the sixth through 18th floors. According to Ruttenbaum 1986, pp. 106–107, staff rooms were on the second and third floors, and tenants were on the fourth through 18th floors. The short-term tenants were on the fourth and fifth floors. Kurshan, Virginia (October 29, 2002). Ritz Tower(PDF) (Report). New York City Landmarks Preservation Commission. Ruttenbaum, Steven (1986). Mansions in the Clouds: The Skyscraper Palazzi of Emery Roth. Balsam Press. ISBN978-0-917439-09-4. OCLC13665931.
"How the Great Apartment Houses Have Paid". The Real Estate Record: Real Estate Record and Builders' Guide. Vol. 35, no. 882. February 7, 1885. pp. 127–128. Archived from the original on May 6, 2022. Retrieved May 6, 2022.
"News of the Real Estate World". New York Herald. August 11, 1922. p. 18. Archived from the original on April 17, 2021. Retrieved April 17, 2021 – via newspapers.com.
According to Landmarks Preservation Commission 2002, p. 6, short-term tenants and staff rooms were on the second to fifth floors, with long-term residents on the sixth through 18th floors. According to Ruttenbaum 1986, pp. 106–107, staff rooms were on the second and third floors, and tenants were on the fourth through 18th floors. The short-term tenants were on the fourth and fifth floors. Kurshan, Virginia (October 29, 2002). Ritz Tower(PDF) (Report). New York City Landmarks Preservation Commission. Ruttenbaum, Steven (1986). Mansions in the Clouds: The Skyscraper Palazzi of Emery Roth. Balsam Press. ISBN978-0-917439-09-4. OCLC13665931.
"'Shanty Land' Now Site of $125,000,000 New Construction: Skyscrapers and Shops Have Replaced Homes of 5,000 Squatters in 57th Street". New York Herald Tribune. January 13, 1929. p. D1. ProQuest1111941344.
"Terra Cotta Used in Artistic Style: Ritz Tower and Beverly Facades Reveal Value of Good Architecture". The New York Times. June 26, 1927. p. RE15. ISSN0362-4331. ProQuest104147892.
"Ritz Tower Formally Opened With Dinner: Residents in New Apartment Hotel Entertain Guests". New York Herald Tribune. November 17, 1926. p. 25. ProQuest1113044209.
"Ritz Tower Modernizes Public Area: Work Precedes Change to Co-op". New York Herald Tribune. October 30, 1955. p. 4C. ProQuest1323299782.
"'Co-op' Plan Set for Ritz Tower: Tenant Ownership Proposed for 40-story Building at 465 Park Avenue". The New York Times. February 6, 1955. p. R1. ISSN0362-4331. ProQuest113228644.
"Brisbane Adds to His Holdings in East 57th Street". New-York Tribune. August 4, 1923. p. 9. ProQuest1222029706.
"Real Estate News: Brisbane Trades Realty in East 57th Street Acquires House and in Turn Resells It for Another for Site of Big Apartment at Park Avenue Corner". The New York Herald, New York Tribune. November 12, 1924. p. 33. ProQuest1113194228.
"Drawing Plans for Tall Structures: Millions Are Involved in New Building Operations for Manhattan". The New York Times. August 31, 1924. p. RE2. ISSN0362-4331. ProQuest103306637.
"Brisbane Plans for New York World's Tallest Apartment: Structure Thirty Stories High, With Diana of Madison Square Fame on Top, Has Been Ordered by Editor for Park Ave, and 57th Street Corner". The New York Herald, New York Tribune. September 7, 1924. p. B1. ProQuest1113035738.
"Real Estate News: Ritz-Carlton Takes 30-Story Park Av. Hotel $10,000,000 Rental Will Be Paid Arthur Brisbane During Next 21 Years for 57th Street Building". The New York Herald, New York Tribune. January 24, 1925. p. 20. ProQuest1113106525.
"Latest Dealings in Realty Field: New Thirty-story Apartment Hotel on Park Av. Financed by S.w. Straus & Co". The New York Times. November 16, 1924. p. W17. ISSN0362-4331. ProQuest103320866.
"Clearing the Ground for 30-story Hotel: Many Changes Made in Plans for Arthur Brisbane's Big Park Avenue Project". The New York Times. November 30, 1924. p. RE2. ISSN0362-4331. ProQuest103276220.
"Brisbane Apartment Hotel Will Cost $2,400,000". The New York Herald, New York Tribune. January 3, 1925. p. 23. ProQuest1112779251.
"Brisbane to Get $1,000 Income a Day for Ritz". The New York Herald, New York Tribune. July 26, 1925. p. B15. ProQuest1112933479.
"Hotel Nears Completion: Ritz Tower to Be Finished During the Summer". The New York Times. May 2, 1926. p. RE28. ISSN0362-4331. ProQuest103841398.
"Tallest Apartment Hotel Is Nearing Completion". The New York Herald, New York Tribune. May 23, 1926. p. C27. ProQuest1113044209.
"Big Apartments Held to Violate Tenement Laws: $300,000,000 Properties Menaced by Threat of the City to Regulate Height and Bar Inside Kitchens". New York Herald Tribune. October 7, 1926. p. 1. ProQuest1112635259.
"Ritz Tower, On Park Ave., Reported Sold: Arthur Brisbane Is Understood to Have Passed His 41-Story Building at 57th St. Over to W. R. Hearst". New York Herald Tribune. January 15, 1928. p. D1. ProQuest1113424066.
"Telephone Co. Sells Building In 58th Street: Hearst Interests May Use Site and Adjoining Plot for Ritz Tower Addition". New York Herald Tribune. May 5, 1931. p. 41. ProQuest1114104185.
"50-Story Office Building to Rise At Park, 58th St.: $10,000,000 Structure Is Planned on Old Alcoa Plot; Evictions a Problem Proposed New Skyscraper". New York Herald Tribune. March 11, 1952. p. 2. ProQuest1342070744.
"Blasts Kill Seven-firemen: Trapped in New York Basement Flames Ritz Tower Hotel Is Scene of Terrific Explosions". Daily Boston Globe. August 2, 1932. p. 2. ProQuest758406665.
"Ritz Tower Blast Deaths Rise as 8th Fireman Dies: E. R. Maloney Succumbs to Internal injuries". New York Herald Tribune. August 19, 1932. p. 7. ProQuest1114738795.
"Hearst Ending His Ownership Of Ritz Tower". New York Herald Tribune. April 1, 1938. p. 17. ProQuest1242963591.
"Reorganization Plan Filed for Ritz Tower Hotel". New York Herald Tribune. December 12, 1938. p. 30. ProQuest1260670989.
Crist, Judith (May 18, 1956). "Four Ritz Tower Tenants Win Room Service Again". New York Herald Tribune. p. A1. ProQuest1327294006.
Reif, Rita (May 16, 1966). "There's No Place Like Home When It's in a Luxury Hotel". The New York Times. p. 62. ISSN0362-4331. ProQuest117501560.
"Ritz Tower Gets Big Mortgage". New York Herald Tribune. September 17, 1958. p. 24. ProQuest1325098744.
Levy, Claudia (April 20, 1975). "First Bank For Women Advances: First Women's Bank Advances". The Washington Post. p. M1. ISSN0190-8286. ProQuest146301630.
"A Bank for Women Opens Its Doors". Newsday. October 17, 1975. p. 37. ProQuest922595001.
Goldberger, Paul (September 23, 1984). "Seeking the Ideal: a Convenient Location and Special Amenities in the Building and Surrounding Neighborhood Are Important Considerations in Pied-a-terre Living". The New York Times. p. HD52. ISSN0362-4331. ProQuest122525705.
Diana, Shaman (February 15, 1991). "Hotel in Manhattan Saves Tax Benefits: Residents keep their deductions by selling a co-op's commercial space". The New York Times. p. A24. ISSN0362-4331. ProQuest108831371.
Temes, Judy (June 8, 1992). "Japan Says Sayonara to N.Y.C. for Now". Crain's New York Business. Vol. 8, no. 23. p. 31. ProQuest219129269.
"Rentals Show No Let-Up in Demand For Apartments: Mr. Brisbane Rents Rooms in Ritz Tower, Building Which He Has Erected at Park Avenue and 57th St". New York Herald Tribune. October 7, 1926. p. 39. ProQuest1112632609.
"Leases in Ritz Tower.: Grocery Executive Takes Apartment on Park Avenue -- Other Rentals". The New York Times. November 26, 1927. p. 28. ISSN0362-4331. ProQuest104009151.
"Duke and Duchess of Sutherland Are Mrs. Hearst's Guests: Upper and Dance at Ritz Tower Given for English Visitors". New York Herald Tribune. April 16, 1931. p. 21. ProQuest1114097377.
"Art Show to Aid China Opens at the Ritz Tower: Works of 200 Americans Will Be Sold for War Fund". New York Herald Tribune. March 12, 1941. p. 25A. ProQuest1261406128.
"'Ritz Tower, Night,' 1920s Painting by O'Keeffe, Sold for $1.21 Million". Los Angeles Times. December 5, 1992. p. VCA20. ProQuest1729800403.
"How the Great Apartment Houses Have Paid". The Real Estate Record: Real Estate Record and Builders' Guide. Vol. 35, no. 882. February 7, 1885. pp. 127–128. Archived from the original on May 6, 2022. Retrieved May 6, 2022.
"News of the Real Estate World". New York Herald. August 11, 1922. p. 18. Archived from the original on April 17, 2021. Retrieved April 17, 2021 – via newspapers.com.
According to Landmarks Preservation Commission 2002, p. 6, short-term tenants and staff rooms were on the second to fifth floors, with long-term residents on the sixth through 18th floors. According to Ruttenbaum 1986, pp. 106–107, staff rooms were on the second and third floors, and tenants were on the fourth through 18th floors. The short-term tenants were on the fourth and fifth floors. Kurshan, Virginia (October 29, 2002). Ritz Tower(PDF) (Report). New York City Landmarks Preservation Commission. Ruttenbaum, Steven (1986). Mansions in the Clouds: The Skyscraper Palazzi of Emery Roth. Balsam Press. ISBN978-0-917439-09-4. OCLC13665931.
"Terra Cotta Used in Artistic Style: Ritz Tower and Beverly Facades Reveal Value of Good Architecture". The New York Times. June 26, 1927. p. RE15. ISSN0362-4331. ProQuest104147892.
"'Co-op' Plan Set for Ritz Tower: Tenant Ownership Proposed for 40-story Building at 465 Park Avenue". The New York Times. February 6, 1955. p. R1. ISSN0362-4331. ProQuest113228644.
"Drawing Plans for Tall Structures: Millions Are Involved in New Building Operations for Manhattan". The New York Times. August 31, 1924. p. RE2. ISSN0362-4331. ProQuest103306637.
"Latest Dealings in Realty Field: New Thirty-story Apartment Hotel on Park Av. Financed by S.w. Straus & Co". The New York Times. November 16, 1924. p. W17. ISSN0362-4331. ProQuest103320866.
"Clearing the Ground for 30-story Hotel: Many Changes Made in Plans for Arthur Brisbane's Big Park Avenue Project". The New York Times. November 30, 1924. p. RE2. ISSN0362-4331. ProQuest103276220.
Franey, Pierre (2010). A Chef's Tale : a Memoir of Food, France, and America. Lincoln Neb: University of Nebraska Press. pp. 89–90, 110–111. ISBN978-0-8032-3469-7. OCLC555650109.
Levy, Claudia (April 20, 1975). "First Bank For Women Advances: First Women's Bank Advances". The Washington Post. p. M1. ISSN0190-8286. ProQuest146301630.
Goldberger, Paul (September 23, 1984). "Seeking the Ideal: a Convenient Location and Special Amenities in the Building and Surrounding Neighborhood Are Important Considerations in Pied-a-terre Living". The New York Times. p. HD52. ISSN0362-4331. ProQuest122525705.
Diana, Shaman (February 15, 1991). "Hotel in Manhattan Saves Tax Benefits: Residents keep their deductions by selling a co-op's commercial space". The New York Times. p. A24. ISSN0362-4331. ProQuest108831371.
"Leases in Ritz Tower.: Grocery Executive Takes Apartment on Park Avenue -- Other Rentals". The New York Times. November 26, 1927. p. 28. ISSN0362-4331. ProQuest104009151.