APA Edition Citation

Armstrong, G. A., & Kotler, P. A. (1999). Principles of marketing (Ed.8.).

Chicago Edition Citation

Armstrong, Gary; Author, and Philip; Author Kotler. Principles of Marketing. Ed.8. New Jersey, Prentice-Hall International, 1999.

MLA Edition Citation

Armstrong, Gary; Author, and Philip; Author Kotler. Principles of Marketing. Ed.8. 1999.