Adams, D. (2003). The salmon of doubt: Hitchhiking the galaxy one last time. Pan Books.
Cita Chicago Style (17a ed.)Adams, Douglas. The Salmon of Doubt: Hitchhiking the Galaxy One Last Time. London: Pan Books, 2003.
Cita MLA (9a ed.)Adams, Douglas. The Salmon of Doubt: Hitchhiking the Galaxy One Last Time. Pan Books, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.