Kotler, P. (1994). Learning guide ; Principles of marketing (6th ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Kotler, Philip. Learning Guide ; Principles of Marketing. 6th ed. New Jersey, New York: Prentice Hall, 1994.
Lua MLA (9ú heag.)Kotler, Philip. Learning Guide ; Principles of Marketing. 6th ed. Prentice Hall, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.