@book{1969,
	author = {Ríu, Emilio.},
	title = {Revista nacional de economía / },
	publisher = {Est. Tip. Suc. Rivadeneyra, },
	year = {1916-[1932?]},
	address = {Madrid : },
	url = {http://hemerotecadigital.bne.es/issn/2171-360X }
}