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1Foilsithe / Cruthaithe 1963### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1963-1967.5 v. : ill. ; 24 cm.“...Institut po obshta i neorganichna khimi︠i︡a (Bŭlgarska akademi︠i︡a na naukite)...”
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2Foilsithe / Cruthaithe 1961### CRL customization ### ?> ### Add publisher and desc details ### ?>Sofi︠i︡a : Izd-vo na Bŭlgarskata akademi︠i︡a na naukite, 1961-1962.2 v. : ill. ; 24 cm.“...Institut po obshta i neorganichna khimi︠i︡a (Bŭlgarska akademi︠i︡a na naukite)...”