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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Tsarskitie prirodonauchni instituti (Sofiia, Bulgaria)
    Publication info: Sofiia, Pechatnitsa P. Glushkov, 1928-
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Bulgaria  Natural history  Periodicals  Tsarskitie prirodonauchni instituti (Sofiia, Bulga