@book{109674,
	author = {University of Puerto Rico Rio Piedras campus},
	title = {Estudio del sistema educativo},
	publisher = {Universdad de Puerto Rico},
	year = {1961?},
	series = {Its Publicaciones pedagógicas ser. 6, no. 1},
	address = {Río Piedras},
	note = {Dirigido por Ismael Rodríguez Bou.}
}