Roberts, A. (2019). Leadership in war: Essential lessons from those who made history. Viking.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoberts, Andrew. Leadership in War: Essential Lessons from Those Who Made History. New York: Viking, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRoberts, Andrew. Leadership in War: Essential Lessons from Those Who Made History. Viking, 2019.
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