000 00282nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aUyless Black
245 0 _aComputer networks: Protocols, standards & interfaces
250 _a2nd
260 _aNew Delhi
_bPHI
_c2001
942 _cBK
999 _c10922
_d10922