@book{26281,
	author = {Kaye, Joel, and ebrary, Inc.},
	title = {Economy and nature in the fourteenth century},
	publisher = {Cambridge University Press,},
	year = {1998.},
	series = {Cambridge studies in medieval life and thought ;},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10021355}
}