Não informado. (2004). American Engineer: The railway mechanical monthly. Simmons Boardman Publishing.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. American Engineer: The Railway Mechanical Monthly. New York: Simmons Boardman Publishing, 2004.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. American Engineer: The Railway Mechanical Monthly. Simmons Boardman Publishing, 2004.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.