Geology of the Aspen 15-minute quadrangle, Pitkin and Gunnison Counties, Colorado
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Washington
U.S. Govt. Print. Off.
1979.
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| Cyfres: | Geological Survey professional paper
1073. |
| Pynciau: |