Geologic map index of Delaware and Maryland /
| Main Author: | |
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| Corporate Author: | |
| Format: | Map |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Geological Survey,
1951.
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| Subjects: |
| Item Description: | Cartographic material. |
|---|---|
| Physical Description: | 1 map : color ; 45 x 82 cm, on sheet 57 x 93 cm |
| Bibliography: | Includes "Key to index map" (bibliography of 74 maps). |