Cita APA (7a ed.)

Doyle, A. C., & Gooden, P. (2002). The lost world. Penguin Books.

Cita Chicago Style (17a ed.)

Doyle, Arthur Conan, y Philip Gooden. The Lost World. New York ; London: Penguin Books, 2002.

Cita MLA (8a ed.)

Doyle, Arthur Conan, y Philip Gooden. The Lost World. Penguin Books, 2002.