Bella Chip R. & Zebke Ron. (2007). Managing Knock Your Socks off Service. American Management Association.
Cita Chicago Style (17a ed.)Bella Chip R. y Zebke Ron. Managing Knock Your Socks off Service. NewYork: American Management Association, 2007.
Cita MLA (9a ed.)Bella Chip R. y Zebke Ron. Managing Knock Your Socks off Service. American Management Association, 2007.
Precaución: Estas citas no son 100% exactas.