APA (7th ed.) Citation

Thomas, v. A., & Pegis, A. C. (1975). Summa contra gentiles. Summa contra gentiles.

Chicago Style (17th ed.) Citation

Thomas, von Aquin, and Anton C. Pegis. "Summa Contra Gentiles." Summa Contra Gentiles 1975.

MLA (8th ed.) Citation

Thomas, von Aquin, and Anton C. Pegis. "Summa Contra Gentiles." Summa Contra Gentiles, 1975.

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