APA (7th ed.) Citation

Aquinas, T., & Hutchins, R. M. The summa theologica.

Chicago Style (17th ed.) Citation

Aquinas, Thomas, and Robert Maynard Hutchins. The Summa Theologica.

MLA (8th ed.) Citation

Aquinas, Thomas, and Robert Maynard Hutchins. The Summa Theologica.

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