APA (7th ed.) Citation

Knowledge Products, Heston, C., & Schmitz, K. L. (1990). St. Thomas Aquinas. Knowledge Products.

Chicago Style (17th ed.) Citation

Knowledge Products, Charlton Heston, and Kenneth L. Schmitz. St. Thomas Aquinas. Nashville, TN: Knowledge Products, 1990.

MLA (9th ed.) Citation

Knowledge Products, et al. St. Thomas Aquinas. Knowledge Products, 1990.