Kelsey, R. (2013). What's Stopping to you? Being More Confident. Wiley India Pvt. Ltd.
Cita Chicago (17th ed.)Kelsey, Robert. What's Stopping to You? Being More Confident. New Delhi: Wiley India Pvt. Ltd, 2013.
Cita MLA (9th ed.)Kelsey, Robert. What's Stopping to You? Being More Confident. Wiley India Pvt. Ltd, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.