Diamond drill handbook
Cumming, James D.
Diamond drill handbook - 2nd ed. - Toronto: K. Smit, 1956 - xxx, 655p.
Includes index
Mining
622.382 / CUM
Diamond drill handbook - 2nd ed. - Toronto: K. Smit, 1956 - xxx, 655p.
Includes index
Mining
622.382 / CUM