APA (7e ed.) Bronvermelding

WALKER, J. R. (1976). Modern metalworking: Materials, tools and procedures. The Goodheart-Willcox.

Chicago (17e ed.) Bronvermelding

WALKER, John R. Modern Metalworking: Materials, Tools and Procedures. Illinois: The Goodheart-Willcox, 1976.

MLA (9e ed.) Bronvermelding

WALKER, John R. Modern Metalworking: Materials, Tools and Procedures. The Goodheart-Willcox, 1976.

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