@book{7233,
	author = {Kleitz, William.},
	title = {Digital electronics : a practical approach},
	publisher = {Prentice Hall,},
	year = {1996.},
	series = {9th edition.},
	address = {[S.l.] :},
	edition = {2nd ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0132543036/chopaconline-20}
}