Dyfyniad APA

Kotler, P. (1989). Marketing management/6e (6th ed.). Prentice Hall Of India pvt. ltd.

Dyfyniad Arddull Chicago

Kotler, P. Marketing Management/6e. 6th ed. New Delhi: Prentice Hall Of India pvt. ltd, 1989.

Dyfyniad MLA

Kotler, P. Marketing Management/6e. 6th ed. Prentice Hall Of India pvt. ltd, 1989.

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