000 00261nam a2200109Ia 4500
008 220201s1968 xx 000 0 eng d
100 _aCOLBERT D A
245 0 _aDATA PROCESSING CONCEPTS
260 _aNEW YORK
_bMCGRAW HILL
_c1968
300 _a222
942 _2ddc
999 _c89115
_d89115