00377nam a2200145Ia 4500008004100000041000800041082001200049100002300061245003500084250001700119260003200136300001300168650003100181999001900212231207s9999    xx            000 0 und d  aeng  a621/BEH  aBehrouz A Forouzan  aData Communication and Network  a2011 4th Ed.  bTata McGraw Hill, New Delhi  aPB/14134  aComnputer Program Language  c949742d949742