APA (7th ed.) Citation

Roberts, G. A., & Cary, R. A. (1980). Tool steels (4th ed.). American Society for Metals.

Chicago Style (17th ed.) Citation

Roberts, George A., and Robert A. Cary. Tool Steels. 4th ed. Beachwood, Ohio: American Society for Metals, 1980.

MLA (8th ed.) Citation

Roberts, George A., and Robert A. Cary. Tool Steels. 4th ed. American Society for Metals, 1980.