000 00279nam a2200121Ia 4500
008 211126s9999 xx 000 0 und d
082 _a5.71
100 _aKARREN PATTEN
245 0 _aDATA NETWORKING MADE EASY
260 _bFIREWALL MEDIA
365 _b360.00
942 _cBTECH
999 _c139445
_d139445