David S. Evans. (2001). Catalyst Code. HBS Press.
Lua i Stíl Chicago (17ú heag.)David S. Evans. Catalyst Code. HBS Press, 2001.
Lua MLA (9ú heag.)David S. Evans. Catalyst Code. HBS Press, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.