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Serials Classification

• Use of the W1 classification number allows NLM and other libraries to arrange their serials on the shelf alphabetically by title

• Use of the W2 and WX 2 classification numbers allows government and hospital serial publications to be arranged on the shelf by jurisdiction or location

• NLM does not supply alternate call numbers for serials

• Libraries that prefer to shelve serials by topic need to assign their own call numbers to serial titles

• Exception:
  • NLM supplies alternate topical call numbers for analyzed volumes of serials classed in W1 and W3