1. 1
    Reference sources in library and information services : a guide to the literature /
    by Purcell, Gary R.
    Published 1984
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  2. 2
    Developing collections of U.S. government publications /
    by Hernon, Peter
    Published 1982
    Other Authors: “…Purcell, Gary R.…”
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  3. 3
    Linking the U.S. National Technical Information Service with academic and public libraries /
    by McClure, Charles R.
    Published 1986
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  4. 4
    GPO's depository library program : a descriptive analysis /
    by Hernon, Peter
    Published 1985
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