APA (7th ed.) Citation

Chesterton, G. K. (1942). St. Francis of Assisi. Doubleday.

Chicago Style (17th ed.) Citation

Chesterton, G. K. St. Francis of Assisi. New York: Doubleday, 1942.

MLA (9th ed.) Citation

Chesterton, G. K. St. Francis of Assisi. Doubleday, 1942.

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