000 00228nam a2200097Ia 4500
008 170619s9999 xx 000 0 und d
100 _aSALVIN- B
245 0 _aOPERATING SYSTEMS CONCEPTS
260 _bPEARSON EDU. DELHI
260 _c2004
546 _aENGLISH
999 _c22883
_d22883