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  1. Agricultural survey of Europe : the Danube Basin : part I /
    By: Michael, Louis Guy,
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1924.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Agriculture  Danube River Valley  
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  2. Voyage dans la Russie méridionale et la Crimée,
    By: Demidov, Anatolīĭ,
    Publication info: ParisE. Bourdin1840
    Contributed by: Robarts - University of Toronto (archive.org)
    Subjects: Black Sea Lowland  Black Sea Lowland (Ukraine)  Danube River Valley  Description and travel  Natural history  Ukraine  
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