APA
Kotler P., Armstrong G., . (2006). Principles of Marketing. New Delhi: Pearson.
Chicago
Kotler Philip, Armstrong Gary, . 2006. Principles of Marketing. New Delhi: Pearson.
Harvard
Kotler P., Armstrong G., . (2006). Principles of Marketing. New Delhi: Pearson.
MLA
Kotler Philip, Armstrong Gary, . Principles of Marketing. New Delhi: Pearson. 2006.