@book{62263,
	author = {Hansson, Helena. and Lars�en, Karin. and ebrary, Inc.},
	title = {Drivers and restraints for economically efficient farm production},
	publisher = {Nova Science Publishers, Inc.,},
	year = {2010.},
	series = {Agriculture issues and policies series},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10671069}
}