@book{82370,
	author = {Starke, Linda. and Worldwatch Institute.},
	title = {State of the world 2012},
	publisher = {Island Press,},
	year = {2012.},
	series = {Worldwatch report},
	address = {Washington, D.C. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10568560}
}