Proceedings of a workshop on Development of Mineral, Energy, and Water Resources and Mitigation of Geologic Hazards in Central America /

Autor Krushensky, Richard D., Cargill, Simon. M., Raines, Gary L.
Vydáno 1987

PACER - data entry, retrieval, and update for the National Coal Resources Data System (phase I) /

Autor Cargill, Simon. M., Olson, A. C., Medlin, Antoinette L., Carter, M. Devereux
Vydáno 1976

Prospects for mineral resource assessments on public lands: Proceedings of the Leesburg Workshop /

Vydáno 1986