Collins, J. (2001). Good to great: Why some companies make the leap. Collins.
Lua i Stíl Chicago (17ú heag.)Collins, Jim. Good to Great: Why Some Companies Make the Leap. New York: Collins, 2001.
Lua MLA (9ú heag.)Collins, Jim. Good to Great: Why Some Companies Make the Leap. Collins, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.