Axelrod, A. (2008). Edison on Innovation. FT Press.
Lua i Stíl Chicago (17ú heag.)Axelrod, Alan. Edison on Innovation. New Jersey: FT Press, 2008.
Lua MLA (9ú heag.)Axelrod, Alan. Edison on Innovation. FT Press, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.