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  1. 1
    The prospective teacher's knowledge of library fundamentals : a study of the responses made by 4,170 college seniors to tests designed to measure familiarity with libraries /
    图书
    由 Perkins, Ralph
    出版 1965
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  2. 2
    Book and non-book media; annotated guide to selection aids for educational materials
    图书
    由 Perkins, Flossie L.
    出版 1972
    其他作者: “...Perkins, Ralph...”
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