Dyfyniad APA

Zeithaml,Valarie A, & Bitner, M. J. G. (2019). Services Marketing (7th.). McGraw Hill Education.

Dyfyniad Arddull Chicago

Zeithaml,Valarie A, and Mary Jo; Gremler Bitner. Services Marketing. 7th. Chennai: McGraw Hill Education, 2019.

Dyfyniad MLA

Zeithaml,Valarie A, and Mary Jo; Gremler Bitner. Services Marketing. 7th. McGraw Hill Education, 2019.

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