@book{47677,
	author = {Wright, Richard T., and Nebel, Bernard J.},
	title = {Environmental science :},
	publisher = {Prentice Hall Hispanoamericana,},
	year = {[2002]},
	series = {Pearson education},
	address = {Upper Saddle River, New Jersey [Estados Unidos] :},
	edition = {Eight edition}
}