APA (7th ed.) Citation

Powell, C. L. (2012). It Worked For Me: In Life And Leadership. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Powell, Colin L. It Worked For Me: In Life And Leadership. U.S.A.: HarperCollins Publishers, 2012.

MLA (9th ed.) Citation

Powell, Colin L. It Worked For Me: In Life And Leadership. HarperCollins Publishers, 2012.