@book{9695,
	author = {Ashley, Ruth. and Fernandez, Judi N.},
	title = {DOS 5: self-teaching guide},
	publisher = {Wiley,},
	year = {1991.},
	address = {[S.l.] :},
	edition = {1st ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0471551910/chopaconline-20}
}