APA (7th ed.) Citation

Gilson, E. (1955). History of Christian philosophy in the Middle Ages / by Etienne Gilson. Sheed and Ward.

Chicago Style (17th ed.) Citation

Gilson, Etienne. History of Christian Philosophy in the Middle Ages / by Etienne Gilson. London: Sheed and Ward, 1955.

MLA (9th ed.) Citation

Gilson, Etienne. History of Christian Philosophy in the Middle Ages / by Etienne Gilson. Sheed and Ward, 1955.

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