Magnetograms and hourly values, San Juan, Puerto Rico.
- Publisher:
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 227499060
- Subject: Geomagnetism Observations Puerto Rico Geomagnetism Observations.
- Subject code: QC
- Publication history: 1950-
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1950-52; 1953-55; 1956-58; 1959-62 | permanent |