@book{4915,
	author = {Vásquez Lavín, Felipe and Cerda Urrutia, Arcadio},
	title = {Valoración económica del ambiente},
	publisher = {Thomson Learning},
	year = {2007},
	address = {Buenos Aires :},
	url = {https://www.biblioeco.unsa.edu.ar/pmb/images/libros/L128233.jpg}
}