000 00311nam a2200133Ia 4500
008 230222s9999 xx 000 0 und d
082 _a004.6
100 _aJean Walrand
245 0 _aCommunication networks: a first course
250 _a2
260 _bTata Mcgraw Hill
_c2002
650 _aCOMPUTER
942 _cBK
999 _c504
_d504