000 00307nam a2200121Ia 4500
008 230718s9999||||xx |||||||||||||| ||und||
082 _a005.43
100 _aRITCHIE COLIN
245 0 _aOPERATING SYSTEMS: INCORPORATING UNIX AND WINDOWS
250 _a3
260 _bB P B
_c1998
_aNEW DELHI
300 _a277
999 _c40610
_d40610