000 00297nam a2200121Ia 4500
008 220201s1990 xx 000 0 eng d
082 _a4
_bBAL
100 _aBalagurusamy,E.
245 0 _aComputer system and application
260 _adelhi
_bTata Mcgraw hill
_c1990
300 _a664
942 _2ddc
999 _c33688
_d33688