APA (7th ed.) Citation

Ullmann, W. (1975). Law and politics in the Middle Ages: An introduction to the sources of medieval political ideas. Cambridge University Press. https://doi.org/10.1017/CBO9780511562259

Chicago Style (17th ed.) Citation

Ullmann, Walter. Law and Politics in the Middle Ages: An Introduction to the Sources of Medieval Political Ideas. Cambridge: Cambridge University Press, 1975. https://doi.org/10.1017/CBO9780511562259.

MLA (9th ed.) Citation

Ullmann, Walter. Law and Politics in the Middle Ages: An Introduction to the Sources of Medieval Political Ideas. Cambridge University Press, 1975. https://doi.org/10.1017/CBO9780511562259.