00397nam a2200145Ia 450000100060000000800410000602000180004704000130006508200190007810000230009724500720012026000410019230000110023354600070024417432140405s9999    xx            000 0 und d  a1-57610-438-9  cPK-LaUMT  a 004.64bLUA-C  aMatthew E. Luallen  aCisco internetwork troubleshooting exam 640-440cMatthew E. Luallen  aCalifornia,USA:bCorwin Press,c1999  a429 p.  aEN