APA (7th ed.) Citation

Powicke, F. M. (1965). Stephen Langton: In Hilary Term 1927. Merlin Press.

Chicago Style (17th ed.) Citation

Powicke, Frederick M. Stephen Langton: In Hilary Term 1927. London: Merlin Press, 1965.

MLA (9th ed.) Citation

Powicke, Frederick M. Stephen Langton: In Hilary Term 1927. Merlin Press, 1965.