APA Citation

Stephen F. Krar, & J. William Oswald. (1977). Drilling technology. Usa: Delmar Publishers.

Chicago Style Citation

Stephen F. Krar, and J. William Oswald. Drilling Technology. Usa: Delmar Publishers, 1977.

MLA Citation

Stephen F. Krar, and J. William Oswald. Drilling Technology. Usa: Delmar Publishers, 1977.

Warning: These citations may not always be 100% accurate.