@book{38723,
	author = {Bayon, Ricardo.},
	title = {Voluntary carbon markets :},
	publisher = {Earthscan,},
	year = {2009.},
	address = {London ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/toc/fy1001/2008051841.html}
}