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1Published 1965Sofi︠i︡a, Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1965.227 p. : ill. ; 24 cm.“...Izd-vo na Bŭlgarskata akademi︠i︡a na naukite,...”
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2Published 1968Sofi︠i︡a : Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1968-1971.v. : ill.“...Izd-vo na Bŭlgarskata akademi︠i︡a na naukite,...”
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3Published 1965Sofi︠i︡a, Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1965.167 p. illus. 20 cm.“...Izd-vo na Bŭlgarskata akademi︠i︡a na naukite,...”
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4Published 1966Sofi︠i︡a, Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1966.121 p.“...Izd-vo na Bŭlgarskata akademi︠i︡a na naukite,...”