Richards, C. L. (2012). The psychology of wealth: Understand your relationship with money and achieve prosperity. McGraw-Hill.
Chicago-Zitierstil (17. Ausg.)Richards, Charles L. The Psychology of Wealth: Understand Your Relationship with Money and Achieve Prosperity. New York: McGraw-Hill, 2012.
MLA-Zitierstil (9. Ausg.)Richards, Charles L. The Psychology of Wealth: Understand Your Relationship with Money and Achieve Prosperity. McGraw-Hill, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.