@book{7209,
	author = {Lightfoot, David.},
	title = {Computer programming in pascal /},
	publisher = {Teach Yourself Books,},
	year = {1992.},
	series = {Teach yourself.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0340337281/chopaconline-20}
}