APA (7th ed.) Citation

Chesterton, G. K. (1939). St. Francis of Assisi (21st. ed.). Hodder and Stoughton.

Chicago Style (17th ed.) Citation

Chesterton, G. K. St. Francis of Assisi. 21st. ed. London: Hodder and Stoughton, 1939.

MLA (8th ed.) Citation

Chesterton, G. K. St. Francis of Assisi. 21st. ed. Hodder and Stoughton, 1939.