Magnetic hourly values, San Juan, Puerto Rico.
- Publisher: Coast and Geodetic Survey
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 32557276
- Subject: Geomagnetism Puerto Rico Observations.
- Subject code: QC
- Publication history: Ceased in 1949.
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1948-49 | permanent |