Program: HathiTrust Digital Library
- Publisher: Universidad Nacional de México, Instituto de Geología
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 9029115
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1928-34; 1935-40
|
committed to retain | 2015-02-08 | HTDL |
|