Columbia subject headings:
Harvard subject headings:
Descartes, René, 1596-1650. Discours de la méthode.
Descartes, René, 1596-1650. Regulæ ad directionem ingenii.
Princeton subject headings:
Descartes, René, 1596-1650. Discours de la méthode.
Descartes, René, 1596-1650. Regulæ ad directionem ingenii.