000 00290nam a2200121Ia 4500
008 220201s1998 xx 000 0 eng d
082 _a4.6
_bMAC
100 _aMackenzie,L
245 0 _aCommunication and networks
260 _aLondon
_bMcgraw Book Co.
_c1998
300 _a544
942 _2ddc
999 _c36135
_d36135