Small mines development in precious metals /
Small mines development in precious metals /
editors, Ta M. Li, Thomas M. Plouf.
- Littleton, Colo. : Society of Mining Enginers, 1987.
- x, 238 p. : ill.
0873350693
91024191
Precious metals.
Mining engineering
0873350693
91024191
Precious metals.
Mining engineering