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    Bibliographic problems in the natural sciences, reports delivered at the VI Scientific Conference of the Library of the Academy of Sciences of the USSR, Leningrad, March 2-4, 1960

    منشور في 1962
    كتاب

    Bibliographic problems in the natural sciences, reports delivered at the VI Scientific Conference of the Library of the Academy of Sciences of the USSR, Leningrad, March 2-4, 1960

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