@book{401,
	author = {Draper, D. A. G.},
	title = {Explaining unemployment},
	publisher = {Emerald,},
	year = {1998.},
	series = {Contributions to economic analysis,},
	address = {Bingley, U.K. :},
	url = {http://www.emeraldinsight.com/0573-8555/250}
}