APA (7th ed.) Citation

Thompson, J. W. (1931). History of the Middle Ages, 300-1500. W. W. Norton.

Chicago Style (17th ed.) Citation

Thompson, James Westfall. History of the Middle Ages, 300-1500. New York: W. W. Norton, 1931.

MLA (9th ed.) Citation

Thompson, James Westfall. History of the Middle Ages, 300-1500. W. W. Norton, 1931.