APA (7th ed.) Citation

Clark, G. B. (1979). Principles of rock drilling. Colorado School of Mines.

Chicago Style (17th ed.) Citation

Clark, George Bromley. Principles of Rock Drilling. Golden: Colorado School of Mines, 1979.

MLA (9th ed.) Citation

Clark, George Bromley. Principles of Rock Drilling. Colorado School of Mines, 1979.