000 00268nam a2200109Ia 4500
008 190516s9999 xx 000 0 und d
100 _aDOYLE JEFF
245 0 _aCCIE PROFESSIONAL DEVELOPMENT ROUTING TCP/IP
260 _c1998
_bTECHMEDIA
300 _a1025
942 _cBK
999 _c17491
_d17491