Cita APA (7a ed.)

Adams, D. (2009). The Hitchhiker's guide to the galaxy. Pan Books.

Cita Chicago Style (17a ed.)

Adams, Douglas. The Hitchhiker's Guide to the Galaxy. London: Pan Books, 2009.

Cita MLA (8a ed.)

Adams, Douglas. The Hitchhiker's Guide to the Galaxy. Pan Books, 2009.