000 00293nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a004.6
100 _aAchyut S Godbole
245 0 _aData communications and networks
260 _bTata Mcgraw Hill
_c2003
650 _aCOMPUTER
942 _cBK
999 _c4877
_d4877