00349nam a2200133Ia 4500008004100000041000800041082001200049100002400061245003800085250002100123260002800144300001200172650003100184231207s9999    xx            000 0 und d  aeng  a384/BEH  aBehrouz A. Forouzan  aData communication and networking  a2004 3rd Edition  bTata mc graw hill Delhi  aPB/B.32  aComnputer Program Language