@book{12833,
	author = {Arden, B W.},
	title = {Digital computing /},
	publisher = {Addison-wesley,},
	year = {1963.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/B0043KBM2I/chopaconline-20}
}