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Clarence E. Ellis

2 books

Books by Clarence E. Ellis

Mineral investigation of the Oh-Be-Joyful Wilderness Study Area, Gunnison County, Colorado
Mineral investigation of the Oh-Be-Joyful Wilderness Study Area, Gunnison County, Colorado
1983
Hazard evaluation and procedures for working in inactive mines, draft
Hazard evaluation and procedures for working in inactive mines, draft
1979