APA (7th ed.) Citation

Chesterton, G. k. (1957). St. Francis of Assisi. Image Books.

Chicago Style (17th ed.) Citation

Chesterton, Gilbert keith. St. Francis of Assisi. Nueva York: Image Books, 1957.

MLA (9th ed.) Citation

Chesterton, Gilbert keith. St. Francis of Assisi. Image Books, 1957.