Cita APA (7a ed.)

Ford, B. (1956). The age of Chaucer. Penguin Books.

Cita Chicago Style (17a ed.)

Ford, Boris. The Age of Chaucer. Middlesex: Penguin Books, 1956.

Cita MLA (8a ed.)

Ford, Boris. The Age of Chaucer. Penguin Books, 1956.