@book{221552,
	author = {Martin, Lee R. and American Agricultural Economics Association.},
	title = {Economics of welfare, rural development and natural resources in agriculture 1940s to 1970s},
	publisher = {University of Minnesota Press for the American Agricultural Economics Association,},
	year = {1981.},
	series = {A survey of agricultural economics literature ;},
	address = {Minneapolis :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10194368}
}