00302nam a2200109Ia 4500008004100000082002500041100001700066245004500083250001200128260004400140300000800184240913s9999||||xx |||||||||||||| ||und||  aGS    621.382  TOM/A  aWayne Tomasi 0aAdvanced electronic communication system  a6th Ed.  bPearson Education AsiaaNew Delhic2006  a654