KOTLER PHILIP. (2011). PRINCIPLES OF MARKETING. Issued.
Cita Chicago (17th ed.)KOTLER PHILIP. PRINCIPLES OF MARKETING. NEW DELHI: Issued, 2011.
Cita MLA (9th ed.)KOTLER PHILIP. PRINCIPLES OF MARKETING. Issued, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.