000 00306nam a2200133Ia 4500
008 170101s1991 xx 000 0 und d
020 _a817029259X
100 _aMehta Subhash
245 0 _aPC Companion
260 _aN.Delhi
_bBPB
_c1991
300 _a356
650 _aComputer Science
942 _2ddc
_cBK
999 _c53993
_d53993