Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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