000 00384nam a2200181Ia 4500
008 240220s9999 xx 000 0 und d
041 _aENG
082 _a1642
100 _aDonovan J. J.
245 0 _aOperating systems.
260 _aNew Delhi
260 _bTata Mcgraw Hill Book Co
260 _c1999
300 _a640p.
365 _b375
650 _aETC
942 _cDBK
999 _c26451
_d26451