Annual report.
- Publisher:
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 7589139
- Subject: Electric industries Puerto Rico.
- Subject code: H
- Publication history: 1941/42-
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1937-1940; 1941/42-1942/43 ([1-2]); 1943/44-1945/46 (3-5); 1946/47-1947/48 (6-7); 1948/49 (8); 1972/3 | permanent |
| University of Pittsburgh (PIT) | EAST | 1958/1959-1964/1965; 1970/1971-1977/1978 | 20310630 |