Lua APA (7ú heag.)

Kotler, P. (1991). Principles of marketing (5th ed.). Prentice-Hall.

Lua i Stíl Chicago (17ú heag.)

Kotler, Philip. Principles of Marketing. 5th ed. New Delhi: Prentice-Hall, 1991.

Lua MLA (9ú heag.)

Kotler, Philip. Principles of Marketing. 5th ed. Prentice-Hall, 1991.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.