Search (3 results, page 1 of 1)

  • × language_ss:"e"
  • × type_ss:"m"
  • × year_i:[1950 TO 1960}
  1. Hadamard, J.: ¬An essay on the psychology of invention in the mathematical field (1954) 0.01 
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  2. Metcalfe, J.: Subject classifying and indexing of libraries and literature (1959) 0.01 
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  3. Hulme, E.W.: Principles of book classification (1950) 0.00 
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    Theme
    Geschichte der Klassifikationssysteme

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