APA Citation

Thomas, A., & Kreeft, P. (1990). A summa of the Summa: The essential philosophical passages of St. Thomas Aquinas' Summa theologica. San Francisco: Ignatius Press.

MLA Citation

Thomas, Aquinas, and Peter Kreeft. A Summa of the Summa: The Essential Philosophical Passages of St. Thomas Aquinas' Summa Theologica. San Francisco: Ignatius Press, 1990.

Warning: These citations may not always be 100% accurate.