1. Aquinas, Thomas (CGJn). Commentary on the Gospel of St. John. J.A. Weisheipl and F.R. Larcher (1980): Part I, Albany: Magi Books; Part II, Petersham, Mass.: St. Bede’s Publications.
2. Aquinas, Thomas (STh). Summa Theologica. Transl. by Fathers of the English Dominican Province. Christian Classics. Maryland: Westminster. Reprinted: 1981.
3. Augustine (MPL). Migne Patrologia, Series Latina.
4. Bochenski, J.M. (1965). The Logic of Religion. New York: New York University Press.
5. Cohen, P. (1963/64). “The Independence of the Continuum Hypothesis”, Proceedings of the National Academy of Sciences 50, pp. 1143–1148; and 51, pp. 105–110.