Ionospheric data.
- Publisher: U.S. Environmental Science Services Administration
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 20793358
- Subject: Ionospheric radio wave propagation Periodicals.
- Subject code: QC
- Publication history:
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1966-1970; 1971:Jan.-June; 1971:July-Dec.; 1972:Jan.-June; 1972:July-Dec.; 1973:Jan.-June; 1973:July-Dec.; 1974:Jan.-June; 1974:July-Dec. | permanent |