Program: HathiTrust Digital Library
- Publisher: Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey
- Print ISSN: 0160-4759
- Electronic ISSN:
- OCLC Number: 2178114
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
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no.27; no.37; no.86; c.1 no.178; c.1 no.206; no.206 1925; no.65 1926; no.178 1926; no.5 1929; no.5 1929 atlas; no.168 1930; no.36 1933; no.96 1939; no.75 1940; no.54 1942; no.55 1946; no.197 1959
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committed to retain | 2022-01-28 | HTDL |
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