United States Geological Survey Conterminous United States Mineral Assessment Program. (1987). The Conterminous United States Mineral Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Silver City 1 x 2 quadrangle, New Mexico and Arizona. U.S. Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)United States Geological Survey Conterminous United States Mineral Assessment Program. The Conterminous United States Mineral Assessment Program: Background Information to Accompany Folio of Geologic and Mineral Resource Maps of the Silver City 1 X 2 Quadrangle, New Mexico and Arizona. Washington, D.C: U.S. Gov. Print. Off, 1987.
MLA-Zitierstil (9. Ausg.)United States Geological Survey Conterminous United States Mineral Assessment Program. The Conterminous United States Mineral Assessment Program: Background Information to Accompany Folio of Geologic and Mineral Resource Maps of the Silver City 1 X 2 Quadrangle, New Mexico and Arizona. U.S. Gov. Print. Off, 1987.