000 00266nam a2200109Ia 4500
008 190703s9999 xx 000 0 und d
082 _a621.38195 B627
100 _aBLACK,U
245 0 _aTCP/IP & RELATED PROTOCOLS
260 _aNEW YORK
_bMcGraw-Hill
942 _cBB
_2DDC
999 _c6263
_d6263