Kotler, P., & Keller, K. L. (2006). Marketing management (12th ed.). Prentice-hall.
Lua i Stíl Chicago (17ú heag.)Kotler, Philip, agus Kevin Lane Keller. Marketing Management. 12th ed. New Jersey: Prentice-hall, 2006.
Lua MLA (9ú heag.)Kotler, Philip, agus Kevin Lane Keller. Marketing Management. 12th ed. Prentice-hall, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.