@book{58533,
	author = {O'Neill, John and Holland, Alan},
	title = {Environmental values /},
	publisher = {Routledge,},
	year = {2008},
	series = {Routledge introductions to environment series},
	address = {London ;},
	url = {http://www.loc.gov/catdir/toc/ecip0617/2006023830.html}
}