@book{48159,
	author = {Valadez, Joseph J. and Bamberger, Michael.},
	title = {Monitoring and evaluating social programs in developing countries},
	publisher = {World Bank,},
	year = {1994.},
	address = {Washington, D.C. :},
	url = {http://www.worldbank.icebox.ingenta.com/content/wb/548}
}