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1981 Summary of Coal Resources in Colorado
Bok av Dept Of Nat Colorado Geological Survey
1996 Summary of Coal Resources in Colorado
Bok av Dept Of Nat Colorado Geological Survey
Coalbed Methane Development in Colorado, September 1990
Bok av Dept Of Nat Colorado Geological Survey
1990 Summary of Coal Resources in Colorado
Bok av Dept Of Nat Colorado Geological Survey
1979 Summary of Coal Resources in Colorado
Bok av Dept Of Nat Colorado Geological Survey
Appendices of an Appraisal of the Use of Geothermal Energy in State-Owne...
Bok av Dept Of Nat Colorado Geological Survey
Rare-Earth Pegmatites of the South Platte District, Colorado
Bok av Dept Of Nat Colorado Geological Survey
Colorado Mineral and Mineral Fuel Activity, 1998
Bok av Dept Of Nat Colorado Geological Survey

Coal Bed Methane Desorption Data

Bok av Dept Of Nat Colorado Geological Survey