EMD GP40-based passenger locomotives (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "EMD GP40-based passenger locomotives" in English language version.

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altoonaworks.info

books.google.com

  • Wilson, Jeff (2009). The Model Railroader's Guide to Diesel Locomotives. Kalmbach Publishing. ISBN 9780890247617.

boston.com

archive.boston.com

ct.gov

mtamaryland.com

njtransit.com

pnlxrail.com

railfan.com

railjournal.com

railwayage.com

thedieselshop.us

trains.com

trn.trains.com

trains.com

web.archive.org