@book{9011,
	author = {Langan, John.},
	title = {Sentence skills :},
	publisher = {McGraw-Hill,},
	year = {1997.},
	address = {[S.l.] :},
	edition = {3rd ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0073371696/chopaconline-20}
}