000 00309nam a2200121Ia 4500
008 191004s9999 xx 000 0 und d
082 _a5.42
245 0 _aComputer Systems
250 _a1st Ed.
260 _bEdutech Informatics India Pvt Ltd 249-C,Udyoge Vihar Phase-4
_c1999
300 _a191p
942 _cBK
999 _c11484
_d11484