Using oxygen to reactivate a nearly dormant copper sulfide leach /
by B. W. Madsen and R. D. Groves.
- [Washington, D.C.] : U.S. Dept. of the Interior, 1975.
- 9 p. : ill.
- Report of investigations / Bureau of Mines, U.S. Department of the Interior ; 8056 .
- Report of investigations (U.S. Department of the Interior. 8056 .