Program: HathiTrust Digital Library
- Publisher: Petroleum Publishers
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 10667264
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.2 1955; v.3 1956; v.4 no.1-6-v.6 no.1-2 1957-1959; v.6 no.1-6 1959; v.7 no.1-3 1960
|
committed to retain | 2012-04-07 | HTDL |
|