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1. Statisticheski godishnikʺ na Bŭlgarskoto T͡Sarstvo
   HA1621 .S792 1909
2. Statisticheski godishnikʺ na T͡Sarstvo Bŭlgarii͡a
   HA1621 .S792 1934
3. Statisticheski spravochnik na NR Bŭlgaria
   HA1621 .S795 1958
4. Statisticheski spravochnik
   HA1621 .S795 1970
5. Statistical reference book, PR Bulgaria
   HA1621 .S7951 1984