Extent: | 61 S graph. Darst |
---|---|
Series: | Biblioteka na Družestvo "Georgi Kirkov". - Sofija : Izdatelstvo na Otečestvenija Front, ZDB-ID 2961417-X. |
Type of publication: | Book / Working Paper |
Type of publication (narrower categories): | Graue Literatur ; Non-commercial literature |
Language: | Bulgarian |
Notes: | In kyrill. Schr., bulg. |
Source: | ECONIS - Online Catalogue of the ZBW |
Persistent link: https://www.econbiz.de/10000698910