@book{647,
	author = {Fomby, Tom.},
	title = {Modelling and evaluating treatment effects in econometrics},
	publisher = {Emerald,},
	year = {2008.},
	series = {Advances in econometrics,},
	address = {Bingley, U.K. :},
	note = {Includes index.},
	url = {http://www.emeraldinsight.com/0731-9053/21}
}