Kotler, P. (2006). Principles of marketing (11th.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Kotler, Philip. Principles of Marketing. 11th. New Delhi: Prentice Hall, 2006.
Lua MLA (9ú heag.)Kotler, Philip. Principles of Marketing. 11th. Prentice Hall, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.