Annual report. 1916-1917. New York: Interborough Rapid Transit Company. 1917. Archived from the original on September 29, 2018. Retrieved August 7, 2018.
"Astoria Ditmars Blvd". MTA Arts & Design. MTA. 2018. Archived from the original on August 30, 2019. Retrieved November 15, 2019.
"MTA Neighborhood Maps: Astoria"(PDF). Metropolitan Transportation Authority. 2015. Archived(PDF) from the original on November 23, 2018. Retrieved September 27, 2015.
"City Takes Over B. M. T. System; Mayor Skippers Midnight Train". New York Herald Tribune. June 2, 1940. p. 1. ProQuest1243059209.
"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.
Annual report. 1916-1917. New York: Interborough Rapid Transit Company. 1917. Archived from the original on September 29, 2018. Retrieved August 7, 2018.
"Astoria Ditmars Blvd". MTA Arts & Design. MTA. 2018. Archived from the original on August 30, 2019. Retrieved November 15, 2019.
"MTA Neighborhood Maps: Astoria"(PDF). Metropolitan Transportation Authority. 2015. Archived(PDF) from the original on November 23, 2018. Retrieved September 27, 2015.