APA (7th ed.) Citation

Myers, A. R. M. (1963). England in the late middle ages. Penguins Books.

Chicago Style (17th ed.) Citation

Myers, A. R. Myers. England in the Late Middle Ages. Londres: Penguins Books, 1963.

MLA (9th ed.) Citation

Myers, A. R. Myers. England in the Late Middle Ages. Penguins Books, 1963.