Historia naturalis bulgarica Bŭlgarska akademii︠a︡ na naukite. contributor text series Sofiia Bulgarska akademiia na naukite c1989- 1989
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BUL ENG RUS Title from cover. Articles in Bulgarian (with summaries in Russian and English), English (with summaries in Russian), or Russian (with summaries in English); table of contents also in English. Bulgaria Natural history Periodicals QH178.B9 H58 https://www.biodiversitylibrary.org/bibliography/44837 0205-3640 21395285 YAM