Citazione Stile APA (7a Edizione)

Hsieh, T. (2010). Delivering Happiness: A Path to Profits, Passion, and Purpose. Grand Central Publishing.

Citazione stile Chigago Style (17a edizione)

Hsieh, Tony. Delivering Happiness: A Path to Profits, Passion, and Purpose. New York: Grand Central Publishing, 2010.

Citatione MLA (9a ed.)

Hsieh, Tony. Delivering Happiness: A Path to Profits, Passion, and Purpose. Grand Central Publishing, 2010.