@book{95670,
	author = {Waltner-Toews, David, and ebrary, Inc.},
	title = {The ecosystem approach},
	publisher = {Columbia University Press,},
	year = {c2008.},
	series = {Complexity in ecological systems series},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10397409}
}