Mineral resources of the Gold Creek and Sperry Creek Wilderness study areas, Malheur County, Oregon /
Evans, James George,1938-
Washington : U.S. G.P.O. ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey,
1990.
Includes bibliographical references (p. 14-15).
Mines and mineral resources
Mines and mineral resources