Magretta, J. (2007). What management is. Protile Books.
Lua i Stíl Chicago (17ú heag.)Magretta, John. What Management Is. London: Protile Books, 2007.
Lua MLA (9ú heag.)Magretta, John. What Management Is. Protile Books, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.