The Conterminous United States Mineral Assessment Program : background information to accompany folio of geologic and mineral resource maps of the Silver City 1⁰ x 2⁰ quadrangle, New Mexico and Arizona /
Richter, Donald H.
[Reston, Va.?] : Department of the Interior, U.S. Geological Survey,
1987.
Conterminous United States Mineral Appraisal Program.
Geology
Geology
Mines and mineral resources
Mines and mineral resources