Berland, M. J., & Schoen, D. E. (2009). What makes you tick?: How successful people do it : and what you can learn from them (1st edition.). HarperCollins.
Cita Chicago Style (17a ed.)Berland, Michael J., y Douglas E. Schoen. What Makes You Tick?: How Successful People Do It : And What You Can Learn from Them. 1st edition. Pymble, N.S.W., Australia ; New York, N.Y.: HarperCollins, 2009.
Cita MLA (9a ed.)Berland, Michael J., y Douglas E. Schoen. What Makes You Tick?: How Successful People Do It : And What You Can Learn from Them. 1st edition. HarperCollins, 2009.
Precaución: Estas citas no son 100% exactas.