Hawkins, A. (2008). The forgotten prime minister: The 14th Earl of Derby. Oxford University Press.
Dyfyniad Arddull ChicagoHawkins, Angus. The Forgotten Prime Minister: The 14th Earl of Derby. Oxford ; New York: Oxford University Press, 2008.
Dyfyniad MLAHawkins, Angus. The Forgotten Prime Minister: The 14th Earl of Derby. Oxford University Press, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.