Program: HathiTrust Digital Library
- Publisher: [Izdatelstvo na Bŭlgarskata akademii︠a︡ na naukite]
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 5055826
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.1 1975; v.2-3 1976; v.4 1977; v.1-5 (1975-1980); v.5 1980
|
committed to retain | 2014-10-02 | HTDL |
|