Dyfyniad APA

Kotler, P. (1997). Marketing management (9th ed.). Prentice-Hall of India.

Dyfyniad Arddull Chicago

Kotler, Philip. Marketing Management. 9th ed. New Delhi: Prentice-Hall of India, 1997.

Dyfyniad MLA

Kotler, Philip. Marketing Management. 9th ed. Prentice-Hall of India, 1997.

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