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  1. Dykstra, M.: PRECIS: a primer (1985) 0.03
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    LCSH
    PRECIS (Indexing system)
    PRECIS
    Documents / Subject indexing / Schemes: PRECIS
    Subject
    PRECIS (Indexing system)
    Documents / Subject indexing / Schemes: PRECIS
  2. Craven, T. C.: String indexing (1986) 0.03
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    LCSH
    NEPHIS (Indexing system)
    Indexing
    Subject
    NEPHIS (Indexing system)
    Indexing
  3. Austin, D.: PRECIS: a manual of concept analysis and subject indexing (1984) 0.02
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    LCSH
    PRECIS (Indexing system)
    Subject
    PRECIS (Indexing system)