Collins, J. P. (2002). Built to Last. Simon & Suhuster.
Lua i Stíl Chicago (17ú heag.)Collins, Jim; Porras. Built to Last. London: Simon & Suhuster, 2002.
Lua MLA (9ú heag.)Collins, Jim; Porras. Built to Last. Simon & Suhuster, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.