APA (7th ed.) Citation

Contamine, P., & Jones, M. (1984). War in the Middle Ages. Basil Blackwell.

Chicago Style (17th ed.) Citation

Contamine, Philippe, and Michael Jones. War in the Middle Ages. Cambridge: Basil Blackwell, 1984.

MLA (9th ed.) Citation

Contamine, Philippe, and Michael Jones. War in the Middle Ages. Basil Blackwell, 1984.

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