Blois Keith. (2008). Textbook of Marketing. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Blois Keith. Textbook of Marketing. Oxford University Press, 2008.
Lua MLA (9ú heag.)Blois Keith. Textbook of Marketing. Oxford University Press, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.