000 00337nam a2200133Ia 4500
008 250409s9999 xx 000 0 und d
020 _a81-8147-206-3
082 _a4.6
_bPET
100 _aPetterson,L
245 0 _aComputer networks:a system approach 3/E
260 _aVidhyanagar
_bMorgan
_c2003
365 _a395
700 _a Davie,B
999 _c251370
_d251370