Cita APA (7a ed.)

Roberts, G. A., & Cary, R. A. (1980). Tool steels (4th ed.). ASM.

Cita Chicago Style (17a ed.)

Roberts, George A., y Robert A. Cary. Tool Steels. 4th ed. Ohio: ASM, 1980.

Cita MLA (8a ed.)

Roberts, George A., y Robert A. Cary. Tool Steels. 4th ed. ASM, 1980.