@book{4888,
	author = {Field, Barry C. and Cano, Leonardo},
	title = {Economía ambiental},
	publisher = {McGraw-Hill},
	year = {1995},
	address = {Bogotá :},
	url = {https://www.biblioeco.unsa.edu.ar/pmb/images/libros/L128191.jpg}
}