00564nam a2200181Ia 4500003000900000008004100009040001600050080001500066110004700081245008100128250001700209260004800226300001000274490002100284650002100305650002600326650003000352IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a25.45bUDC  aInternational Federation for Documentation 0aUniversal decimal classificationcInternational Federation for Documentation  a3rd rev. ed.  aLondonbBritish Standards Institutionc1961  a254p.  aB.S. 1000A: 1961  a Classification  aBook Classification   aClassification, Decimal