Kotler, P., Armstrong, G., & Brooks, J. R. (1999). Principles of marketing: Instructor's resource manual (8th ed.). Prentice-Hall.
Cita Chicago (17th ed.)Kotler, Philip, Gary Armstrong, i John R. Brooks. Principles of Marketing: Instructor's Resource Manual. 8th ed. Upper Saddle River, N.J: Prentice-Hall, 1999.
Cita MLA (9th ed.)Kotler, Philip, et al. Principles of Marketing: Instructor's Resource Manual. 8th ed. Prentice-Hall, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.