00317nam a2200121 a 450000500170000002000180001708200160003510000230005124500370007425000130011126000440012430000270016820251203110854.0  a9788120330788  a004.65bSTA  aStallings, William  aData and Computer Communications  a8th Edn.  aNew DelhibPrentice-Hall of Indiac2007  axvii, 878p.c26 cm. PB