Cita APA (7a ed.)

Adams Douglas. (1992). Hitch Hiker's guide to the galaxy: A trilogy in four parts. Pan Books Publisher.

Cita Chicago Style (17a ed.)

Adams Douglas. Hitch Hiker's Guide to the Galaxy: A Trilogy in Four Parts. London: Pan Books Publisher, 1992.

Cita MLA (9a ed.)

Adams Douglas. Hitch Hiker's Guide to the Galaxy: A Trilogy in Four Parts. Pan Books Publisher, 1992.