Ben- Shahar, T. (2009). The Pursuit of Perfect. TMH.
Cita Chicago (17th ed.)Ben- Shahar, Tal. The Pursuit of Perfect. TMH, 2009.
Cita MLA (9th ed.)Ben- Shahar, Tal. The Pursuit of Perfect. TMH, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.