000 00258nam a2200109Ia 4500
008 190516s9999 xx 000 0 und d
100 _aComer(DE) & Stevens(DL)
245 0 _aIntrernetwarking With TCO/IP
260 _c2012
_bPHI
300 _a660
942 _cBK
999 _c16797
_d16797