Whitehorne, Wayne; Sklar, Bob (July 11, 2022). "IND Station Tile Colors". nycsubway.org. Archived from the original on May 4, 2022. Retrieved July 11, 2022.
"Aug. 23 Set for Hearing On 6th Av. Subway Bids: Proposals for 39th to 49th Sts. Link To Be Considered Then". New York Herald Tribune. October 8, 1935. p. 2. ProQuest1221734015.
"$6,040,000 Contract For City Subway Awarded". Wall Street Journal. October 31, 1995. p. 10. ISSN0099-9660. ProQuest128702539.
"Mayor Starts Construction of 6th Av. Subway: Demands Razing of "El" as He Breaks Ground at Bryant Park Entrance Appeals for Unification Warns Rate War Is Likely to Follow Failure of Plan". New York Herald Tribune. March 24, 1936. p. 9. ProQuest1222069808.
Harrington, John Walker (October 18, 1936). "A Subway Creeps Up Sixth Ave.; Pipes and Tracks Are Obstacles: First Section Is Well Started and Two More Are About to Begin Extending City's Line Without Disturbing Elevated or Street Traffic". New York Herald Tribune. p. A7. ProQuest1322387831.
"The Tube Takes Shape in 6th Av.: Most of the Excavation Is Done, And, Considering, Done Quietly: Despite the Intricacies of Underground Utility Facilities and Overhead Elevated Line, There Are Fewer Inconveniences and Complaints on Tliis Project Than Construction Usually Brings". New York Herald Tribune. November 7, 1937. p. A3. ProQuest1223317978.
"Real Estate News and Market Transactions of New York City and Metropolitan Area: 6th Av. Subway, 5 Years to Go, Is Taking Shape Tube That Passes Over and Under Other Tunnels Runs Into Some Problems Mid-Town Sixth ... Subway Station s It Looks Today". New York Herald Tribune. May 18, 1937. p. 37. ProQuest1240403778.
"A Thousand Miles of Buried Pipes and Wires: Maze on 6th Ave. Subway Route Is Dug Up, Sorted and Put Together Again Network Is Straightened Out With No Disruption of the City's Utilities". New York Herald Tribune. September 17, 1939. p. A3. ProQuest1259078550.
"6th Av. Subway To Allow for Wide Pavement: Inspection Reveals Plan to Enlarge Street Space When Elevated Comes Down Burrowing Under the Heart of Manhattan for Sixth Avenue's New Subway Line". New York Herald Tribune. February 17, 1938. p. 21A. ProQuest1242866935.
"6th Av. Subway Opens Complete Service Today: Rush-Hour Schedules On at 7 A. M.; Bronx and Queens To Be Affected". New York Herald Tribune. December 16, 1940. p. 10. ProQuest1263396247.
"6th Av. Subway To Run 24-Hour Bronx Express: Schedule of Trains Posted for Opening, at 12:01 A. M. on Sunday, Dec. 15". New York Herald Tribune. December 5, 1940. p. 15. ProQuest1263335131.
"5c Shoeshine Machines Will Get Subway Tryout". New York Herald Tribune. January 30, 1949. p. 1. ProQuest1325338277.
"In Short; Subway Tests Hygiaphone". New York Herald Tribune. February 4, 1949. p. 21. ProQuest1326781247.
"IND Station To Have Its Face Lifted: For Rockefeller Center Stores". New York Herald Tribune. February 10, 1958. p. 5. ProQuest1328092620.
Gleason, Gene (February 9, 1960). "50th St, 1ND Station in New Dress: $85,000 Spent by Rockefeller Center on Redecorating Job". New York Herald Tribune. p. 10. ProQuest1324118287.
Fowler, Glenn (March 21, 1971). "Rockefeller Center Growing Down: Under Rockefeller Center, Concourse Is Growing". The New York Times. p. R1. ISSN0362-4331. ProQuest119210304.
Sachar, Emily (February 6, 1994). "The Giuliani Budget; No Free Ride for Rudy Faces wrath of Albany on subway cuts". Newsday. p. 19. ProQuest278734171.
Boone, Marshand (August 5, 2004). "Rockefeller's Dirty Distinction, Station Is Ranked Worst in Manhattan to Disbelief of Some, but Bronx Stations Lead List of the Worst". Newsday. p. A22. ProQuest279817893.
Donohue, Pete (June 21, 2005). "12 Subway Stations Out of Funds Loop". New York Daily News. p. 4. ProQuest305961613.
Vogel, W. P. Jr. (July 11, 1937). "Work to Begin On Last 6th Av. Tube Link Soon: With 9th-18th St. Contract Let, $57,000,000 Project Will Be Ready in 1941 No Federal Aid for City Man-Made, Natural Hazards Pose Many Problems". New York Herald Tribune. p. A3. ProQuest1248809011.
Whitehorne, Wayne; Sklar, Bob (July 11, 2022). "IND Station Tile Colors". nycsubway.org. Archived from the original on May 4, 2022. Retrieved July 11, 2022.
Fowler, Glenn (March 21, 1971). "Rockefeller Center Growing Down: Under Rockefeller Center, Concourse Is Growing". The New York Times. p. R1. ISSN0362-4331. ProQuest119210304.
