Davis, W. C. (2014). Crucible of command: Ulysses S. Grant and Robert E. Lee -- the war they fought, the peace they forged. Da Capo Press, a Member of the Perseus Books Group.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDavis, William C. Crucible of Command: Ulysses S. Grant and Robert E. Lee -- the War They Fought, the Peace They Forged. Boston, MA: Da Capo Press, a Member of the Perseus Books Group, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDavis, William C. Crucible of Command: Ulysses S. Grant and Robert E. Lee -- the War They Fought, the Peace They Forged. Da Capo Press, a Member of the Perseus Books Group, 2014.
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