APA aipamena

Douglas Adams. (2002). Ultimate Hitchhiker's guide to the galaxy. Ballantine Books.

Chicago Style aipamena

Douglas Adams. Ultimate Hitchhiker's Guide to the Galaxy. New York: Ballantine Books, 2002.

MLA aipamena

Douglas Adams. Ultimate Hitchhiker's Guide to the Galaxy. Ballantine Books, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.