00374nam a2200121Ia 4500008004100000040001700041041001200058082002200070100002100092245009100113260003300204300001500237230917s9999||||xx |||||||||||||| ||und||  e194025aMAIN  aEnglish  a621.3822 C197C(5)  aCarlson, A Bruce 0aCommunication System: An introduction to signals and noise in electrical communication  aNew DelhibMcGraw-Hillc2011  axx, 924 p.