Harvard Business School. (2009). Innovator's Toolkit. Harvard Business.
Lua i Stíl Chicago (17ú heag.)Harvard Business School. Innovator's Toolkit. Boston: Harvard Business, 2009.
Lua MLA (9ú heag.)Harvard Business School. Innovator's Toolkit. Harvard Business, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.