Hiam, A. (1991). The Vest-pocket Marketer. Prentic Hall.
Lua i Stíl Chicago (17ú heag.)Hiam, Alexander. The Vest-pocket Marketer. Prentic Hall, 1991.
Lua MLA (8ú heag.)Hiam, Alexander. The Vest-pocket Marketer. Prentic Hall, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.