00506    a2200181   4500020001500000082001500015100002300030245003500053250000800088260003600096300002000132650003100152650003000183650002100213650002400234650004300258700002300301  a0024154334  a004.6bSTA  aStallings, William  aBusiness data communications    a2nd  aNew YorkbMacmillanc1994g1994  axix,658p.c24cm  aBUSINESS - DATA PROCESSING  aDATA TRANSMISSION SYSTEMS  aCOMPUTER SCIENCE  aLOCAL AREA NETWORKS  aCOMMUNICATION SYSTEM - DATA PROCESSING  aSlyke, Richard Van