@book{42071,
	author = {Clements, Kenneth W., and Zhao, Xueyan,},
	title = {Economics and marijuana :},
	publisher = {Cambridge University Press,},
	year = {2009.},
	address = {Cambridge, UK ;},
	url = {http://assets.cambridge.org/97805218/84952/cover/9780521884952.jpg}
}