000 00295nam a2200121Ia 4500
008 160122s9999 xx 000 0 und d
041 _aEnglish
100 _aMilan Milenkovic
245 _aOperating system concepts
260 _bDelhi:tata Mcgraw hill
_c1997
300 _a755p.
650 _aComputer
999 _c640
_d640