Tucker, R. (2000). Customer service for the new millennium. East west Books.
Cita Chicago Style (17a ed.)Tucker, Robert. Customer Service for the New Millennium. Chennai: East west Books, 2000.
Cita MLA (9a ed.)Tucker, Robert. Customer Service for the New Millennium. East west Books, 2000.
Precaución: Estas citas no son 100% exactas.