00359nam a2200145Ia 4500008004100000020001300041041000800054082001600062100002500078245002500103250000600128260004600134300001100180650002200191210716s1988    xx            000 0 und d  a71003436  aeng  a004.65 SCHW  aSchweber, William L.  aData communications.  a1  aNew YorkbMc Graw Hill Book Companyc1988  axi,564  aComputer Networks