Cita APA (7a ed.)

Hsieh, T. (2010). Delivering happiness: A path to profits, passion, and purpose. Business Plus.

Cita Chicago Style (17a ed.)

Hsieh, Tony. Delivering Happiness: A Path to Profits, Passion, and Purpose. New York [etc.]: Business Plus, 2010.

Cita MLA (9a ed.)

Hsieh, Tony. Delivering Happiness: A Path to Profits, Passion, and Purpose. Business Plus, 2010.