Harvard Business Review Press. (2011). On Leadership. Harvard Business Review Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHarvard Business Review Press. On Leadership. Boston: Harvard Business Review Press, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHarvard Business Review Press. On Leadership. Harvard Business Review Press, 2011.
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