Wareham, J. (1991). The anatomy of a great executive. HarperCollins.
Lua i Stíl Chicago (17ú heag.)Wareham, John. The Anatomy of a Great Executive. [New York, NY]: HarperCollins, 1991.
Lua MLA (8ú heag.)Wareham, John. The Anatomy of a Great Executive. HarperCollins, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.