APA (7th ed.) Citation

Oldenbourg, Z. (1965). The Crusade. Pantheon Books.

Chicago Style (17th ed.) Citation

Oldenbourg, Zoé. The Crusade. New York: Pantheon Books, 1965.

MLA (9th ed.) Citation

Oldenbourg, Zoé. The Crusade. Pantheon Books, 1965.

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