@book{24718,
	author = {Couch II, Leon W. and Navarro salas, Rodolfo},
	title = {Sistemas de comunicacion digitales y analogicos  /},
	publisher = {Pearson Educacion, },
	year = {1998},
	address = {México  },
	edition = {5a ed.},
	note = {Incluye índice}
}