Books by Beth L. Widmann
Evaluation of mineral and mine
Evaluation of mineral and mineral fuel potential of Las Animas County state mineral lands administered by the Colorado State Land Board
Evaluation of mineral and mine
Evaluation of mineral and mineral fuel potential of Lincoln County state mineral lands administered by the Colorado State Land Board
Geologic hazards of the George
Geologic hazards of the Georgetown, Idaho Springs, and Squaw Pass quadrangles, Clear Creek County, Colorado
Evaluation of mineral and mine
Evaluation of mineral and mineral fuel potential of Routt and Eagle counties state mineral lands administered by the Colorado State Land Board
Database of geochemical analys
Database of geochemical analyses of carbonate rocks in Colorado