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Author/Creator
- Geological Survey (U.S.)6
- Cook, Philip S., 1960-3
- United States. National Park Service. Natural Resource Stewardship and Science3
- Lackie, Joyce, 1942-2
- AM (Publisher)1
- ASME Energy Sustainability Conference1
- Accessible Archives1
- Athearn, Frederic J.1
- Birdwell, Justin E.1
- Boulger, Robert W.1
- Cardwell, W. D. E.1
- Casey, Seán1
- Colorado. Department of Public Instruction1
- Colorado. Department of Transportation1
- Colorado. Governor1
- Colorado. Supreme Court1
- Henneberg, Mark F.1
- Howbert, Irving, 1846-19341
- Huyett, D. H.1
- JSTOR (Organization)1