APA (7th ed.) Citation

Myers, A. R. (1952). England in the late Middle Ages. [Penguin Books].

Chicago Style (17th ed.) Citation

Myers, Alec R. England in the Late Middle Ages. [Harmondsworth]: [Penguin Books], 1952.

MLA (9th ed.) Citation

Myers, Alec R. England in the Late Middle Ages. [Penguin Books], 1952.