Beekmantown group : Lower Ordovician, of Maryland.
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| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
[New York] :
[Geological Society of America],
1957.
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| Series: | Memoir (Geological Society of America) ;
68. |
| Subjects: |
| Physical Description: | 161 pages : illustrations, plates (3 in pocket), maps (2 folded, 1 color, in pocket) ; 26 cm. |
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