APA (7th ed.) Citation

Thomas, v. A., & O'Neil, C. J. (1975). Summa contra gentiles. Summa contra gentiles.

Chicago Style (17th ed.) Citation

Thomas, von Aquin, and Charles J. O'Neil. "Summa Contra Gentiles." Summa Contra Gentiles 1975.

MLA (9th ed.) Citation

Thomas, von Aquin, and Charles J. O'Neil. "Summa Contra Gentiles." Summa Contra Gentiles, 1975.

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