Search (2 results, page 1 of 1)

  • × year_i:[1960 TO 1970}
  • × author_ss:"Perreault, J.M."
  • × type_ss:"m"
  1. Perreault, J.M.: Towards a theory for UDC : essays aimed at structural understanding and operational improvement (1969) 1.00 
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  2. Perreault, J.M.: ¬An introduction to Universal Decimal Classification (1969) 1.00 
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