Não informado. (2004). American Engineer: The railway mechanical monthly. Simmons Boardman Publishing.
Chicago (17e ed.) BronvermeldingNão informado. American Engineer: The Railway Mechanical Monthly. New York: Simmons Boardman Publishing, 2004.
MLA (8e ed.) BronvermeldingNão informado. American Engineer: The Railway Mechanical Monthly. Simmons Boardman Publishing, 2004.
Let op: Deze citaties zijn niet altijd 100% accuraat.