000 00310 a2200133 4500
080 _a025.4
_bU 3
245 1 _aUniversal Decimal Classification
260 _aLondon
_bBritish Standards House
650 _aUniversal Decimal Classification
308 _a3
100 _a
_d
300 _a17 p.
901 _a112055
999 _c19442
_d19442