Citrate-process pilot-plant operation at the Bunker Hill Company /
by Laird Crocker, D. A. Martin, and W. I. Nissen.
- [Washington, D.C.] : U.S. Dept. of the Interior, 1979.
- ii, 77 p. : ill.
- Report of investigations / Bureau of Mines, U.S. Department of the Interior ; 8374 .
- Report of investigations (U.S. Department of the Interior. 8374. .