Dyfyniad APA

KOTLER PHILIP. (2008). PRINCIPLES OF MARKETING 12TH ED (12TH ED.). PEARSON PRENTICE HALL.

Dyfyniad Arddull Chicago

KOTLER PHILIP. PRINCIPLES OF MARKETING 12TH ED. 12TH ED. INDIA: PEARSON PRENTICE HALL, 2008.

Dyfyniad MLA

KOTLER PHILIP. PRINCIPLES OF MARKETING 12TH ED. 12TH ED. PEARSON PRENTICE HALL, 2008.

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