KOTLER, P. (2009). MARKETING MANAGEMENT (13TH.). PEARSON.
Cita Chicago (17th ed.)KOTLER, PHILIP. MARKETING MANAGEMENT. 13TH. DELHI: PEARSON, 2009.
Cita MLA (9th ed.)KOTLER, PHILIP. MARKETING MANAGEMENT. 13TH. PEARSON, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.