00303nam a2200109 a 450000500170000002000150001708200190003210000330005124500480008426000400013230000210017220251203091722.0  a0201527715  a004.6,bD, LEI  aLeinwand, Allan, Fang, Karen  aNetwork management: a practical perspective  aMassashusettsbAddison Wesleyc1993  axviii,222p, 22cm