000 00280nam a2200109Ia 4500
100 _aDhamdhere, D.M
942 _cBK
245 _aIntrodution to system software
260 _aTata McGraw-Hill Publication company Ltd, New Delhi
_c1986
082 _a001.6425 Dha
300 _avii,400p
999 _c17843
_d17843