NLM® Classification Fundamentals

Classification of Special Materials


Bibliographies and Related Materials


About

various books in a library

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Special rules are used for classifying the following:

  • Bibliography: a list of print or non-print materials.
  • Abstracts: annotated bibliographies; do not confuse with conference abstracts.
  • Indexes: works providing an analytical subject approach to materials.
  • Library catalogs: holdings of libraries.
  • Archives: repositories of historical information.