Program: HathiTrust Digital Library
- Publisher: [Instituto de Investigaciones Geológicas]
- Print ISSN: 0378-6617
- Electronic ISSN:
- OCLC Number: 768109573
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.17-18 (1990-91)
|
committed to retain | 2019-11-09 | HTDL |
|