Dyfyniad APA

KOTLER, P. (2008). Principles of marketing Philip Kotler, Gary Armstrong. Pearson PrenticeHall.

Dyfyniad Arddull Chicago

KOTLER, Philip. Principles of Marketing Philip Kotler, Gary Armstrong. Pearson PrenticeHall, 2008.

Dyfyniad MLA

KOTLER, Philip. Principles of Marketing Philip Kotler, Gary Armstrong. Pearson PrenticeHall, 2008.

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