@book{1919,
	author = {Organizacion Mundial de la Salud},
	title = {Environmental Health Criteria 139: Partially Halogenated Chlorofluorocarbons (Ethane Derivatives)},
	publisher = {Organizacion Mundial de la Salud},
	year = {1992},
	address = {Ginebra},
	edition = {1° ed.},
	note = {Baja depósito Caja 32 Junio 2019}
}