@book{16992,
	author = {Pan American Union. and Pan American commercial conference},
	title = {Cuarta Conferencia comercial panamericana,},
	publisher = {Imprenta del gobierno,},
	year = {1931.},
	address = {Wáshington,},
	note = {At bottom of title-page: Acta final (con un resumen de los trabojos de la conferencia y con varios documentos anexos)}
}