APA
Kotler P., Armstrong G., . (2005). Principles of marketing. Upper Saddle River: Pearson Prentice Hall.
Chicago
Kotler Philip, Armstrong Gary, . 2005. Principles of marketing. Upper Saddle River: Pearson Prentice Hall.
Harvard
Kotler P., Armstrong G., . (2005). Principles of marketing. Upper Saddle River: Pearson Prentice Hall.
MLA
Kotler Philip, Armstrong Gary, . Principles of marketing. Upper Saddle River: Pearson Prentice Hall. 2005.