Hawkins, A. (2008). The forgotten prime minister: The 14th Earl of Derby. Oxford University Press.
Cita Chicago (17th ed.)Hawkins, Angus. The Forgotten Prime Minister: The 14th Earl of Derby. Oxford ; New York: Oxford University Press, 2008.
Cita MLA (9th ed.)Hawkins, Angus. The Forgotten Prime Minister: The 14th Earl of Derby. Oxford University Press, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.