@book{1739,
	title = {Agricultural Involution :},
	publisher = {University of California Press},
	year = {1963. },
	address = {Berkley ;},
	url = {http://firstsearch.oclc.org/WebZ/DCARead?standardNoType=1&standardNo=0520004590:srcdbname=worldcat:fromExternal=true&sessionid=0}
}