@book{622,
	author = {Knox, R.},
	title = {Fundamentals of digital electronics /},
	publisher = {Delmar Learning,},
	year = {1986.},
	address = {[S.l.] :},
	note = {Import.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0827338848/chopaconline-20}
}