APA (7th ed.) Citation

Lyon, B. D. (1964). The high Middle Ages 1000-1300 / edited by B.D. Lyon. Free Press.

Chicago Style (17th ed.) Citation

Lyon, B. D. The High Middle Ages 1000-1300 / Edited by B.D. Lyon. Free Press, 1964.

MLA (9th ed.) Citation

Lyon, B. D. The High Middle Ages 1000-1300 / Edited by B.D. Lyon. Free Press, 1964.

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