Kotler, P. (1980). Marketing management. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Kotler, Philip. Marketing Management. Prentice-Hall, 1980.
Lua MLA (8ú heag.)Kotler, Philip. Marketing Management. Prentice-Hall, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.