Sprague, J. L.; Cunningham, J. J. (2013). "A Frank Sprague Triumph: The Electrification of Grand Central Terminal [History]". IEEE Power and Energy Magazine. 11 (1): 58–76. doi:10.1109/mpe.2012.2222293. ISSN1540-7977. S2CID6729668.
United States Railway Association, Washington, D.C. (1975-07-26). Final System Plan for Restructuring Railroads in the Northeast and Midwest Region pursuant to the Regional Rail Reorganization Act of 1973. ("FSP"): Vol. 1. Vol. 2
Sprague, J. L.; Cunningham, J. J. (2013). "A Frank Sprague Triumph: The Electrification of Grand Central Terminal [History]". IEEE Power and Energy Magazine. 11 (1): 58–76. doi:10.1109/mpe.2012.2222293. ISSN1540-7977. S2CID6729668.
senate.gov
lautenberg.senate.gov
"Gateway Project"(PDF). Amtrak. February 2011. Archived from the original(PDF) on February 7, 2011. Retrieved February 7, 2011.
Sprague, J. L.; Cunningham, J. J. (2013). "A Frank Sprague Triumph: The Electrification of Grand Central Terminal [History]". IEEE Power and Energy Magazine. 11 (1): 58–76. doi:10.1109/mpe.2012.2222293. ISSN1540-7977. S2CID6729668.