000 00282 a2200121 4500
082 _a025.4 Per.K9
100 _qPerreault, Jean M
245 _aAn introduction to UDC
260 _aLondon
_bClive Bingley
_c1969
300 _b111p.
650 _2Library Science
942 _cBK
_2ddc
999 _c299948
_d299948