01074nam0-22002891i-450-990000083050403321000008305FED01000008305(Aleph)000008305FED0100000830520011111d--------km-y0itay50------baitay-------001yyUNIVERSAL decimal classificationB. S. 1000A1948, Abridged English editionprepared by the B. S. I. under the auspices of the International commission on decimal classification of the International federation for documentation, and with the concurrence of the Education foundation, Lake Placid club, New York.LondonBritish standard institution1948127 p.28 cmF.I.D. publication221Classificazione decimale universale025.432ITUNINARICAUNIMARCBK99000008305040332113 U 07 0420093FINBCFINBCUniversal Decimal Classification55582UNINAING01