Upper Devonian marine-nonmarine transition, southern Pennsylvania /
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Harrisburg :
[Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey],
1972.
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| Series: | Bulletin (Pennsylvania. Bureau of Topographic and Geologic Survey) ;
G62. |
| Subjects: |
| Item Description: | Part of illustrative matter in pocket. "Pennsylvania Geological Survey fourth series." |
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| Physical Description: | vi, 25 pages : illustrations ; 23 cm. |
| Bibliography: | Bibliography: page 25. |