APA (7th ed.) Citation

Pegis, A. C. (1948). Introduction to St. Thomas Aquinas: The Essence of the Summa Theologica and the summa Contra Gentiles. The Modern Library.

Chicago Style (17th ed.) Citation

Pegis, Anton C. Introduction to St. Thomas Aquinas: The Essence of the Summa Theologica and the Summa Contra Gentiles. The Modern Library, 1948.

MLA (8th ed.) Citation

Pegis, Anton C. Introduction to St. Thomas Aquinas: The Essence of the Summa Theologica and the Summa Contra Gentiles. The Modern Library, 1948.

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