Friedlander, Alex; Lonto, Arthur; Raudenbush, Henry (April 1960). "A Summary of Services on the IRT Division, NYCTA"(PDF). New York Division Bulletin. 3 (1). Electric Railroaders' Association: 2–3. Archived(PDF) from the original on September 14, 2020. Retrieved January 27, 2021.
"Transit Unification Completed As City Takes Over I. R. T. Lines: Systems Come Under Single Control After Efforts Begun in 1921; Mayor Is Jubilant at City Hall Ceremony Recalling 1904 Celebration". New York Herald Tribune. June 13, 1940. p. 25. ProQuest1248134780.
"37 Platforms On Subways To Be Lengthened: All Stations of B. M. T. and I.R.T.in Queens Included in $5,000,000 Program". New York Herald Tribune. November 20, 1949. p. 32. ISSN1941-0646. ProQuest1325174459.
"A First-class Rapid Ride". Railway Age. Vol. 156, no. 21. June 1, 1964. p. 22. ProQuest895766286.
Friedlander, Alex; Lonto, Arthur; Raudenbush, Henry (April 1960). "A Summary of Services on the IRT Division, NYCTA"(PDF). New York Division Bulletin. 3 (1). Electric Railroaders' Association: 2–3. Archived(PDF) from the original on September 14, 2020. Retrieved January 27, 2021.
"37 Platforms On Subways To Be Lengthened: All Stations of B. M. T. and I.R.T.in Queens Included in $5,000,000 Program". New York Herald Tribune. November 20, 1949. p. 32. ISSN1941-0646. ProQuest1325174459.