000 00280nam a2200121Ia 4500
008 160122s9999 xx 000 0 und d
041 _aEnglish
100 _aD Roy Chaudhary
245 _aNetwork and Systems
260 _bDelhi:new age
_c1998
300 _a926p.
650 _aComputer
999 _c926
_d926