000 00271nam a2200121Ia 4500
008 220201s2010 xx 000 0 eng d
082 _a005.430-SCH
100 _aSchaums
245 0 _aOperating System
260 _aNew Delhi
_bTmh
_c2010
300 _a294
942 _2ddc
999 _c65368
_d65368