@book{110499,
	author = {Puerto Rico.},
	title = {A decade of research at the Office of the Superior Council on Education},
	publisher = {University of Puerto Rico},
	year = {1976.},
	series = {Puerto Rico. Universidad Consejo de Educación Superior. Publicaciones pedagógicas, Serie. 5},
	address = {Río Piedras, P.R.}
}