Stoner, C. (2006). The adversity challenge. Jaico.
Cita Chicago (17th ed.)Stoner, Charles. The Adversity Challenge. Mumbai: Jaico, 2006.
Cita MLA (9th ed.)Stoner, Charles. The Adversity Challenge. Jaico, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.