@book{1891,
	author = {Organizacion Mundial de la Salud},
	title = {Environmental Health Criteria 231: Bentonite, Kaolin and Selected Clay Minerals},
	publisher = {Organizacion Mundial de la Salud},
	year = {2005},
	address = {Ginebra},
	edition = {1° ed.},
	note = {Baja Depósito Caja 31 Junio 2019}
}