Locke, E. A., & Kirkpatrick, S. (1991). The essence of leadership: The four keys to leading successfully. Lexington Books Maxwell Macmillan Canada Maxwell Macmillan International.
芝加哥风格引文Locke, Edwin A., 与 Shelley Kirkpatrick. The Essence of Leadership: The Four Keys to Leading Successfully. New York, Toronto, New York: Lexington Books Maxwell Macmillan Canada Maxwell Macmillan International, 1991.
MLA引文Locke, Edwin A., 与 Shelley Kirkpatrick. The Essence of Leadership: The Four Keys to Leading Successfully. Lexington Books Maxwell Macmillan Canada Maxwell Macmillan International, 1991.
警告：这些引文格式不一定是100％准确.