@book{244632,
	author = {Cochrane, Willard Wesley, and ebrary, Inc.},
	title = {The development of American agriculture},
	publisher = {University of Minnesota Press,},
	year = {c1993.},
	address = {Minneapolis :},
	edition = {2nd ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10159453}
}