1. Anderson, B.: 1987, Creation versus Chaos, Fortress Press, Philadelphia.
2. Aristotle: 1957, De Anima, W. S. Hett (trans.), Harvard University Press, Cambridge, MA.
3. Aristotle: 1961, De Partibus Animalium, A. L. Peck (trans.), Harvard University Press, Cambridge, MA.
4. Aristotle: 1982, Nicomachean Ethics, H. Rackham (trans.), Harvard University Press, Cambridge, MA.
5. Aristotle: 1935, Metaphysics, Harvard University Press, Cambridge, MA.