Não informado. (1905). Railway Engineering and Maintenance. Simmons Boardman Publishing.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Railway Engineering and Maintenance. Chicago, Ill: Simmons Boardman Publishing, 1905.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Railway Engineering and Maintenance. Simmons Boardman Publishing, 1905.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.