Maxwell, J. C. (2011). The 5 levels of leadership: Proven steps to maximize your potential. Hachette Audio.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMaxwell, John C. The 5 Levels of Leadership: Proven Steps to Maximize Your Potential. New York: Hachette Audio, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMaxwell, John C. The 5 Levels of Leadership: Proven Steps to Maximize Your Potential. Hachette Audio, 2011.
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