000 00353nam a2200133Ia 4500
008 210901s1969 xx 000 0 eng d
082 _a025.432 PER
100 _aPerreault, J.M.
245 0 _aTowards a theory for UDC
260 _aUnited Kingdom
_bClive Bingley
_c1969
300 _a241p
650 _aUniversal Decimal Classification
942 _2ddc
_cBK
999 _c6763
_d6763