Style de citation APA

Roberts, G. A., & Cary, R. A. (1980). Tool steels. American society for metals.

Style de citation Chicago

Roberts, George A., et Robert A. Cary. Tool Steels. Ohio: American society for metals, 1980.

Style de citation MLA

Roberts, George A., et Robert A. Cary. Tool Steels. American society for metals, 1980.