The river and the rocks : the geologic story of Great Falls and the Potomac River Gorge / United States, Departement of the Interior, Geological Survey, National Park Service
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Place / Publishing House: | Washington, DC : Gov. Pr. Off, 1970 |
Year of Publication: | 1970 |
Language: | English |
Physical Description: | V, 46 S.; zahlr. Ill., Kt. |
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ac_no: | AC07078616 |
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Hierarchical level: | Monograph |
Statement of Responsibility: | United States, Departement of the Interior, Geological Survey, National Park Service |