APA (7e ed.) Bronvermelding

Não informado. (1953). Railway Track and Structures. Simmons Boardman Publishing.

Chicago (17e ed.) Bronvermelding

Não informado. Railway Track and Structures. Bristol, Conn: Simmons Boardman Publishing, 1953.

MLA (8e ed.) Bronvermelding

Não informado. Railway Track and Structures. Simmons Boardman Publishing, 1953.

Let op: Deze citaties zijn niet altijd 100% accuraat.