@book{53,
	author = {Hall, Douglas V. and Rood, Andrew L.},
	title = {Microprocessors and Interfacing: Programming and Hardware},
	publisher = {Glencoe McGraw-Hill,},
	year = {1991.},
	address = {[S.l.] :},
	edition = {2 Sub ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0070257426/chopaconline-20}
}