APA (7th ed.) Citation

Locke, E. A., & Kirkpatrick, S. The essence of leadership: The four keys to leading successfully. Lexington Books, c1991.

Chicago Style (17th ed.) Citation

Locke, Edwin A., and Shelley Kirkpatrick. The Essence of Leadership: The Four Keys to Leading Successfully. New York: Lexington Books, c1991.

MLA (9th ed.) Citation

Locke, Edwin A., and Shelley Kirkpatrick. The Essence of Leadership: The Four Keys to Leading Successfully. Lexington Books, c1991.