APA (7th ed.) Citation

Chesterton, G. K. (1956). Saint Thomas Aquinas. Image Books.

Chicago Style (17th ed.) Citation

Chesterton, G. K. Saint Thomas Aquinas. New York: Image Books, 1956.

MLA (9th ed.) Citation

Chesterton, G. K. Saint Thomas Aquinas. Image Books, 1956.

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