APA-referens (7:e uppl.)
Fritz, R. (2008). The power of a positive attitude: Discovering the key to success. American Management Association.
Chicago-referens (17:e uppl.)
Fritz, Roger. The Power of a Positive Attitude: Discovering the Key to Success. New York: American Management Association, 2008.
MLA-referens (9:e uppl.)
Fritz, Roger. The Power of a Positive Attitude: Discovering the Key to Success. American Management Association, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.