Minimizing lead contamination in copper produced by solvent extraction-electrowinning /
by T.H. Jeffers and R.D. Groves.
- Pittsburgh, Pa. : United States Dept. of the Interior, Bureau of Mines, 1985.
- 11 p. : ill.
- Report of investigations / United States Dept. of the Interior, Bureau of Mines ; 8934 .
- Report of investigations (United States. Bureau of Mines) ; 8934. .