@book{100260,
	author = {Marvá y Mayer, José. and Jordana de Pozas, Luis,},
	title = {El Instituto Nacional de Previsión, su obra },
	editor = {Sobrinos de los Suc. de M. Minuesa)},
	publisher = {[s.n.], },
	year = {1925 (},
	address = {Madrid : },
	url = {https://archive.org/details/BRes050316}
}