Park nycsubway.org—The History of the Independent Subway: Station Reporter — R Train Station Reporter — M Train Forgotten NY: Subways and Trains — Rockaway
Changes For Subways Are to Begin. The New York Times. December 9, 1988 [July 5, 2009]. (原始内容存档于2021-03-08). Johnson, Kirk. Big Changes For Subways Are to
4億美元。 "The Top 500 Design Firms (页面存档备份,存于互联网档案馆)," Engineering News-Record, April 25, 2013 Clifton Hood, 722 Miles: The Building of theSubways and How