Dyfyniad APA

Kotler Philip. (2009). ,Marketing Management (13th.). Pearson.

Dyfyniad Arddull Chicago

Kotler Philip. ,Marketing Management. 13th. Delhi: Pearson, 2009.

Dyfyniad MLA

Kotler Philip. ,Marketing Management. 13th. Pearson, 2009.

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