APA (7th ed.) Citation

Jordan, W. C. (1979). Louis IX and the challenge of the Crusade: A study in rulership. Princeton University Press.

Chicago Style (17th ed.) Citation

Jordan, William Chester. Louis IX and the Challenge of the Crusade: A Study in Rulership. Princeton, N.J.: Princeton University Press, 1979.

MLA (9th ed.) Citation

Jordan, William Chester. Louis IX and the Challenge of the Crusade: A Study in Rulership. Princeton University Press, 1979.