@book{14215,
	author = {Rietbergen-McCracken, Jennifer, and United Nations Environment Programme.},
	title = {Environmental valuation :},
	publisher = {UNEP :},
	year = {2000.},
	address = {[Nairobi, Kenya] :},
	url = {http://www.loc.gov/catdir/enhancements/fy1111/2003272091-b.html}
}