by U.S. Geological Survey Center for Inter-American Mineral Resource Investigations, and Instituto Nacional de Investigaciones Geológico - Mineras ; compiled and edited by Oland, Gustav P. and Orris, Greta J
by U.S. Geological Survey Center for Inter-American Mineral Resource Investigations and Instituto Nacional de Investigaciones Geológico - Mineras ; compiled and edited by Orris, Greta J., Pierce, Herbert A., and Wells, Tina M
Date
[1994]
Series
U.S. Geological Survey open-file report ; 94-623-B
by U.S. Geological Survey Center for Inter-American Mineral Resource Investigations and Instituto Nacional de Investigaciones Geológico - Mineras ; compiled and edited by Orris, Greta J., Pierce, Herbert A., and Wells, Tina M
Date
[1994]
Series
U.S. Geological Survey open-file report ; 94-623-A