Program: Linda Hall Library of Science, Engineering & Technology
- Publisher: Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic & Geologic Survey
- Print ISSN: 0890-8516
- Electronic ISSN:
- OCLC Number: 6670986
- Validation: None
- Retention:
- Institution: Linda Hall Library of Science, Engineering & Technology
- Facility: Linda Hall Library of Science, Engineering & Technology
- OCLC Symbol: LHL
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.1 (1972)
|
committed to retain | 20140101 | Linda Hall Library of Science, Engineering & Technology |
|