"National Train Timetables". National Railroad Passenger Corporation (Amtrak). October 31, 1976. pp. 15, 22. Retrieved October 18, 2012 – via The Museum of Railway Timetables.
"National Train Timetables". National Railroad Passenger Corporation (Amtrak). January 8, 1978. p. 9 – via The Museum of Railway Timetables.
National Railroad Passenger Corporation (Amtrak) (April 30, 1978). "National Train Timetables". The Museum of Railway Timetables. p. 18. Retrieved October 11, 2012.
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Thoms, William E. (1973). Reprieve for the Iron Horse: The AMTRAK Experiment–Its Predecessors and Prospects. Baton Rouge, LA: Claitor's Publishing Division. p. 57. OCLC1094744.