APA (7th ed.) Citation

Setton, K. M. (1955). A history of the Crusades. University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

Setton, Kenneth M. A History of the Crusades. [Philadelphia]: University of Pennsylvania Press, 1955.

MLA (9th ed.) Citation

Setton, Kenneth M. A History of the Crusades. University of Pennsylvania Press, 1955.

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