@book{166167,
	author = {Grosh, Margaret E. and Baker, Judy L.,},
	title = {Proxy means tests for targeting social programs:},
	publisher = {World Bank,},
	year = {1995.},
	series = {LSMS working paper,},
	address = {Washington, D.C. :},
	url = {http://elibrary.worldbank.org/content/book/9780821333136}
}