Cita APA (7a ed.)

Orwell, G., Hopkins, A., & Potter, J. (1997). Animal farm. Longman.

Cita Chicago Style (17a ed.)

Orwell, George, Andy Hopkins, y Jocelyn Potter. Animal Farm. Essex: Longman, 1997.

Cita MLA (9a ed.)

Orwell, George, et al. Animal Farm. Longman, 1997.