000 00292nam a2200133Ia 4500
008 230206s9999||||xx |||||||||||||| ||und||
020 _c819
040 _aDEL
100 _aStallings, William
_9822
245 0 _aOperating Systems
260 _bPearson
_aNoida
300 _a708
942 _cBK
999 _c90451
_d90451