Cita APA (7th ed.)

Kotler, P. (1994). Learning guide ; Principles of marketing (6th ed.). Prentice Hall.

Cita Chicago (17th ed.)

Kotler, Philip. Learning Guide ; Principles of Marketing. 6th ed. New Jersey, New York: Prentice Hall, 1994.

Cita MLA (9th ed.)

Kotler, Philip. Learning Guide ; Principles of Marketing. 6th ed. Prentice Hall, 1994.