@book{69441,
	author = {Programa de las Naciones Unidas para el Medio Ambiente},
	title = {La cambiante atmósfera},
	publisher = {PNUMA,},
	year = {[1988?]},
	series = {PNUMA. Dossier ambiental},
	address = {Nairobi, Kenia :},
	note = {34-95}
}