APA (7th ed.) Citation

Powell, C. L., & Koltz, T. (2012). It worked for me: In life and leadership. Harper.

Chicago Style (17th ed.) Citation

Powell, Colin L., and Tony Koltz. It Worked for Me: In Life and Leadership. New York: Harper, 2012.

MLA (9th ed.) Citation

Powell, Colin L., and Tony Koltz. It Worked for Me: In Life and Leadership. Harper, 2012.