APA (7th ed.) Citation

Keen, M. (1965). The laws of war in the late Middle Ages. Routledge & Kegan Paul ; University.

Chicago Style (17th ed.) Citation

Keen, Maurice. The Laws of War in the Late Middle Ages. London : Toronto: Routledge & Kegan Paul ; University, 1965.

MLA (9th ed.) Citation

Keen, Maurice. The Laws of War in the Late Middle Ages. Routledge & Kegan Paul ; University, 1965.