Kelsey, R. (2013). What's stopping you?: Being more confident? : why smart people can lack confidence, and what you can do about it. Capstone.
Chicago-referens (17:e uppl.)Kelsey, Robert. What's Stopping You?: Being More Confident? : Why Smart People Can Lack Confidence, and What You Can Do About It. New York: Capstone, 2013.
MLA-referens (8:e uppl.)Kelsey, Robert. What's Stopping You?: Being More Confident? : Why Smart People Can Lack Confidence, and What You Can Do About It. Capstone, 2013.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.