APA (7th ed.) Zitazioa

Anderson, R. (2011). Fifty hats that changed the world. Conran Octopus in association with The Design Museum.

Chicago Style (17th ed.) Zitazioa

Anderson, Robert. Fifty Hats That Changed the World. London: Conran Octopus in association with The Design Museum, 2011.

MLA (9th ed.) Zitazioa

Anderson, Robert. Fifty Hats That Changed the World. Conran Octopus in association with The Design Museum, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.