WALKER, J. R. (1976). Modern metalworking: Materials, tools and procedures. The Goodheart-Willcox.
Chicagoスタイル(17版)引用形式WALKER, John R. Modern Metalworking: Materials, Tools and Procedures. Illinois: The Goodheart-Willcox, 1976.
MLA(9版)引用形式WALKER, John R. Modern Metalworking: Materials, Tools and Procedures. The Goodheart-Willcox, 1976.
警告: この引用は必ずしも正確ではありません.