Cita APA (7a ed.)

DiJulius, J. R. (2008). What's the secret?: To providing a world-class customer experience (1st edition.). Wiley.

Cita Chicago Style (17a ed.)

DiJulius, John R. What's the Secret?: To Providing a World-class Customer Experience. 1st edition. Hoboken, N.J.: Wiley, 2008.

Cita MLA (9a ed.)

DiJulius, John R. What's the Secret?: To Providing a World-class Customer Experience. 1st edition. Wiley, 2008.