APA aipamena

Kotler,Philip, & Armstrong, G. (2008). Principles of marketing (12nd ed.). Pearson Education.

Chicago Style aipamena

Kotler,Philip, and Gray Armstrong. Principles of Marketing. 12nd ed. New Delhi: Pearson Education, 2008.

MLA aipamena

Kotler,Philip, and Gray Armstrong. Principles of Marketing. 12nd ed. Pearson Education, 2008.