Unidad de Promoción Voluntaria del IMSS :
- Publisher: La Unidad
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 6064551
- Subject: Social security Mexico Periodicals.
- Subject code: H
- Publication history: Año 1, no. 4 (may.jun.jul. 1979)-
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | no.1-9 1978-80; no.10-15 1981-82 | permanent |