Tucker, R. (2000). Customer service for the new millennium. East west Books.
Dyfyniad Arddull ChicagoTucker, Robert. Customer Service for the New Millennium. Chennai: East west Books, 2000.
Dyfyniad MLATucker, Robert. Customer Service for the New Millennium. East west Books, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.