Richey, R. (2007). English for customer care. New York: Oxford university press.
Dyfyniad Arddull ChicagoRichey, Rosemary. English for Customer Care. New York: Oxford university press, 2007.
Dyfyniad MLARichey, Rosemary. English for Customer Care. New York: Oxford university press, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.