@book{536,
	author = {Blink, Jocelyn. and Dorton, Ian.},
	title = {Economics :},
	publisher = {Oxford University Press,},
	year = {2007.},
	series = {IB diploma programme},
	address = {Oxford ;},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy0907/2008271392-d.html}
}