@book{586,
	author = {Shrader, Robert L.},
	title = {Electronic Communication /},
	publisher = {McGraw-Hill,},
	year = {1975.},
	address = {[S.l.] :},
	edition = {3rd ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0070571384/chopaconli}
}