APA (7e ed.) Bronvermelding

Não informado. (1940). Machine shop magazine. Engineering, Chemical & Machine Press.

Chicago (17e ed.) Bronvermelding

Não informado. Machine Shop Magazine. London: Engineering, Chemical & Machine Press, 1940.

MLA (8e ed.) Bronvermelding

Não informado. Machine Shop Magazine. Engineering, Chemical & Machine Press, 1940.

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