APA (7th ed.) Zitazioa
Erkenbrecher, C. (2011). The "Hitchhiker's guide to the galaxy" revisited: Motifs of science fiction and social criticism. Diplomica Verlag.
Chicago Style (17th ed.) Zitazioa
Erkenbrecher, Christian. The "Hitchhiker's Guide to the Galaxy" Revisited: Motifs of Science Fiction and Social Criticism. Hamburg: Diplomica Verlag, 2011.
MLA (9th ed.) Zitazioa
Erkenbrecher, Christian. The "Hitchhiker's Guide to the Galaxy" Revisited: Motifs of Science Fiction and Social Criticism. Diplomica Verlag, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.