Cita APA (7a ed.)

Lewis, C. S. (1974). The Horse and his boy. Puffin-[Penguin] Books.

Cita Chicago Style (17a ed.)

Lewis, C. S. The Horse and His Boy. [Harmondsworth]: Puffin-[Penguin] Books, 1974.

Cita MLA (9a ed.)

Lewis, C. S. The Horse and His Boy. Puffin-[Penguin] Books, 1974.