Dyfyniad APA

 Zeithaml, V. A. (2016).  Services marketing: Integrating customer focus across the firm.  McGraw-Hill Education.

Dyfyniad Arddull Chicago

 Zeithaml, Valarie A.  Services Marketing: Integrating Customer Focus Across the Firm.  McGraw-Hill Education, 2016.

Dyfyniad MLA

 Zeithaml, Valarie A.  Services Marketing: Integrating Customer Focus Across the Firm.  McGraw-Hill Education, 2016.

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