APA (7th ed.) Citation

Lyon, B. D. (1965). The Middle Ages in recent historical thought: Selected topics (2nd ed.). Service Center for Teachers of History.

Chicago Style (17th ed.) Citation

Lyon, Bryce Dale. The Middle Ages in Recent Historical Thought: Selected Topics. 2nd ed. Washington: Service Center for Teachers of History, 1965.

MLA (9th ed.) Citation

Lyon, Bryce Dale. The Middle Ages in Recent Historical Thought: Selected Topics. 2nd ed. Service Center for Teachers of History, 1965.