Não informado. (1978). RAILWAY ENGINEER INTERNATIONAL. Mechanical Engineering Publications.
Chicago (17e ed.) BronvermeldingNão informado. RAILWAY ENGINEER INTERNATIONAL. London: Mechanical Engineering Publications, 1978.
MLA (8e ed.) BronvermeldingNão informado. RAILWAY ENGINEER INTERNATIONAL. Mechanical Engineering Publications, 1978.
Let op: Deze citaties zijn niet altijd 100% accuraat.