The union bibliographic/catalogue database

 records: 990.387 
COBIB.BG - the union bibliographic/catalogue database

Data about books, articles, etc. in the National Library (nearly 425,000 books, 410,000 articles, 40,000 journals, 1,000 CDs/DVDs, etc.)

Local databases (catalogues) of libraries

Other databases in COBISS.BG system

COLIB.BG - data on Bulgarian libraries - COLIB.BG