Ball, H., & Cooper, P. J. (1992). Of power and right: Hugo Black, William O. Douglas, and America's constitutional revolution. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBall, Howard, और Phillip J. Cooper. Of Power and Right: Hugo Black, William O. Douglas, and America's Constitutional Revolution. New York: Oxford University Press, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBall, Howard, और Phillip J. Cooper. Of Power and Right: Hugo Black, William O. Douglas, and America's Constitutional Revolution. Oxford University Press, 1992.
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