Communicações da Direcção dos Serviços Geológicos de Portugal.
- Publisher: A Direcção
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 25174431
- Subject: Geology Portugal Periodicals.
- Subject code: QE
- Publication history: T. 4.
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | v.4 (1900-1901) | permanent |