Dyfyniad APA

Kotler, P. (2006). Principles of Marketing (11th edn.). prentic hall of india.

Dyfyniad Arddull Chicago

Kotler, Philip. Principles of Marketing. 11th edn. New Delhi: prentic hall of india, 2006.

Dyfyniad MLA

Kotler, Philip. Principles of Marketing. 11th edn. prentic hall of india, 2006.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.