Gaya APA

Krar, S, F., Oswald, J, W. (1990). Technology of machine tools (4th ed). New York: Gregg Division, McGraw-Hill.

Gaya MLA

Krar, Stephen, F.., Oswald, J., William. "Technology of machine tools". 4th ed New York: Gregg Division, McGraw-Hill, 1990. Text.