Program: HathiTrust Digital Library
- Publisher: Instituto de Investigaciones Geológicas
- Print ISSN: 0577-8042
- Electronic ISSN:
- OCLC Number: 1554262
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.1-3 1959-62; no.11-15 1963-65 + Maps; no.18-23 1968-70 + Maps; no.39 1980; no.41/44 1980
|
committed to retain | 2010-03-05 | HTDL |
|