APA (7th ed.) Citation

Maxwell, J. C. (2009). Self-improvement 101: What every leader needs to know. Thomas Nelson.

Chicago Style (17th ed.) Citation

Maxwell, John C. Self-improvement 101: What Every Leader Needs to Know. Nashville, Tenn: Thomas Nelson, 2009.

MLA (8th ed.) Citation

Maxwell, John C. Self-improvement 101: What Every Leader Needs to Know. Thomas Nelson, 2009.