APA
Kotler P., Keller K. L., . (2009). Marketing management. Upper Saddle River: Pearson.
Chicago
Kotler Philip, Keller Kevin Lane, . 2009. Marketing management. Upper Saddle River: Pearson.
Harvard
Kotler P., Keller K. L., . (2009). Marketing management. Upper Saddle River: Pearson.
MLA
Kotler Philip, Keller Kevin Lane, . Marketing management. Upper Saddle River: Pearson. 2009.