Norman Donald A. (2004). Emotional Design. Basic Books.
Lua i Stíl Chicago (17ú heag.)Norman Donald A. Emotional Design. New York: Basic Books, 2004.
Lua MLA (9ú heag.)Norman Donald A. Emotional Design. Basic Books, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.