Hawkins, A. (2008). The forgotten prime minister: The 14th Earl of Derby. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHawkins, Angus. The Forgotten Prime Minister: The 14th Earl of Derby. Oxford ; New York: Oxford University Press, 2008.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHawkins, Angus. The Forgotten Prime Minister: The 14th Earl of Derby. Oxford University Press, 2008.
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