APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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