APA (7th ed.) Citation

Ault, W. O. (1972). Open-field farming in medieval England. Allen and Unwin; Barnes and Noble.

Chicago Style (17th ed.) Citation

Ault, Warren Ortman. Open-field Farming in Medieval England. London, New York: Allen and Unwin; Barnes and Noble, 1972.

MLA (8th ed.) Citation

Ault, Warren Ortman. Open-field Farming in Medieval England. Allen and Unwin; Barnes and Noble, 1972.