@book{234,
	author = {Endres, Alfred.},
	title = {Environmental economics :},
	publisher = {Cambridge University Press,},
	year = {c2011.},
	address = {New York :},
	edition = {Rev. & extended English ed.},
	note = {Includes index.},
	url = {http://assets.cambridge.org/97805211/73926/cover/9780521173926.jpg}
}