00297nam a2200097Ia 4500008004100000082002500041100003200066245006800098260002500166300000800191140113s9999    xx            000 0 und d  a"025.45""UDC""   K3"  aBritish Standard Institute   aBSI : 1000A :1961 Universal Decimal Classification. 3rd edition  a1963bB.S.I.cLondon  a254