Kotler, P. (1983). Principles of marketing (2nd ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Kotler, Philip. Principles of Marketing. 2nd ed. London: Prentice-Hall, 1983.
Lua MLA (9ú heag.)Kotler, Philip. Principles of Marketing. 2nd ed. Prentice-Hall, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.