@book{288345,
	author = {Jones, Leo,},
	title = {Let's talk 2 :},
	publisher = {Cambridge University Press,},
	year = {2008.},
	address = {Cambridge ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0714/2007012284.html}
}