@book{6073,
	author = {Descartes, René, and Frondizi, Risieri.},
	title = {Discurso del metodo},
	publisher = {Universidad de Puerto Rico},
	year = {[1954]},
	series = {Biblioteca de cultura básica},
	address = {Río Piedras, P.R.},
	note = {French and Spanish.}
}