Cita APA (7th ed.)

Orwell, G. (1989). Animal farm: A fairy story. Penguin Books.

Cita Chicago (17th ed.)

Orwell, George. Animal Farm: A Fairy Story. London: Penguin Books, 1989.

Cita MLA (9th ed.)

Orwell, George. Animal Farm: A Fairy Story. Penguin Books, 1989.