@book{60058,
	author = {Leach, Donald P. and Malvino, Albert Paul.},
	title = {Digital principles and applications },
	publisher = {Glencoe,},
	year = {c1995.},
	address = {New York, N.Y. :},
	edition = {5th ed.},
	note = {Includes Index},
	url = {http://www.loc.gov/catdir/description/mh031/93029589.html}
}