Lavender, T. (2002). Achieving personal greatness: Discover the 10 powerful keys to unlocking your potential. Magna.
Chicago-referens (17:e uppl.)Lavender, Tim. Achieving Personal Greatness: Discover the 10 Powerful Keys to Unlocking Your Potential. Mumbai: Magna, 2002.
MLA-referens (9:e uppl.)Lavender, Tim. Achieving Personal Greatness: Discover the 10 Powerful Keys to Unlocking Your Potential. Magna, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.