APA
Kotler Philip, Armstrong Gary W. V. a. S. J., . (2008). Principles of Marketing. New York: Pearson Education Limited.
Chicago
Kotler Philip, Armstrong Gary Wong Veronica and Saunders John, . 2008. Principles of Marketing. New York: Pearson Education Limited.
Harvard
Kotler Philip, Armstrong Gary W. V. a. S. J., . (2008). Principles of Marketing. New York: Pearson Education Limited.
MLA
Kotler Philip, Armstrong Gary Wong Veronica and Saunders John, . Principles of Marketing. New York: Pearson Education Limited. 2008.