^Our First Subway Completed At Last: Opening of the Van Cortlandt Extension Finishes System Begun in 1900. New York Times. 1908-08-02 [2015-08-16]. (原始内容存档于2016-04-09).
^MORE LONG PLATFORMS; Five Subway Stations on IRT to Accommodate 10-Car Trains. The New York Times. 1948-07-10 [2016-03-27]. ISSN 0362-4331. (原始内容存档于2016-04-08).