@book{249855,
	author = {Union Mundial para la Naturaleza},
	title = {Boletín UICN : Publicación Trimestral de la Unión Mundial para la Naturaleza},
	publisher = {Union Mundial para la Naturaleza},
	year = {2016},
	note = {-Existencias: v. 20, no. 1-4; 7-12; v. 21, no. 1-4; v. v. 22, no. 1-3}
}