Anderson, R. (2011). Fifty hats that changed the world. Conran Octopus in association with The Design Museum.
Lua i Stíl Chicago (17ú heag.)Anderson, Robert. Fifty Hats That Changed the World. London: Conran Octopus in association with The Design Museum, 2011.
Lua MLA (9ú heag.)Anderson, Robert. Fifty Hats That Changed the World. Conran Octopus in association with The Design Museum, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.