Cita APA (7a ed.)

St. John, N. (2009). The secret code of success: 7 hidden steps to more wealth and happiness (ePub edition.). HarperCollins.

Cita Chicago Style (17a ed.)

St. John, Noah. The Secret Code of Success: 7 Hidden Steps to More Wealth and Happiness. ePub edition. Pymble, N.S.W., Australia ; New York, N.Y.: HarperCollins, 2009.

Cita MLA (9a ed.)

St. John, Noah. The Secret Code of Success: 7 Hidden Steps to More Wealth and Happiness. ePub edition. HarperCollins, 2009.