00349nam a2200133Ia 4500008004100000041000800041082001400049100001900063245004600082250001300128260003200141300001100173650003100184231207s9999    xx            000 0 und d  aeng  a004.6/REG  aRegis J. Bates  aPrinciple of Voice and Data Communication  a2007 Ed.  bTata McGraw Hill, New Delhi  aPB/782  aComnputer Program Language