Kotler Philip. (2009). Marketing Management (13th.). Pearson Education.
Dyfyniad Arddull ChicagoKotler Philip. Marketing Management. 13th. New Delhi: Pearson Education, 2009.
Dyfyniad MLAKotler Philip. Marketing Management. 13th. Pearson Education, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.