APA (7th ed.) Citation

Hay, D. (1964). The medieval centuries (Rev. ed., 1. publ.). Methuen.

Chicago Style (17th ed.) Citation

Hay, Denys. The Medieval Centuries. Rev. ed., 1. publ. London: Methuen, 1964.

MLA (9th ed.) Citation

Hay, Denys. The Medieval Centuries. Rev. ed., 1. publ. Methuen, 1964.