APA (7th ed.) Citation

Thomas, v. A. (1868). S. Thomae Aquinatis Summa theologica S. Thomae Aquinatis Summa theologica.

Chicago Style (17th ed.) Citation

Thomas, von Aquin. "S. Thomae Aquinatis Summa Theologica." S. Thomae Aquinatis Summa Theologica 1868.

MLA (9th ed.) Citation

Thomas, von Aquin. "S. Thomae Aquinatis Summa Theologica." S. Thomae Aquinatis Summa Theologica, 1868.

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