Tunstall, B. (1938). William Pitt, Earl of Chatham. Hodder & Stoughton.
Cita Chicago (17th ed.)Tunstall, Brian. William Pitt, Earl of Chatham. London: Hodder & Stoughton, 1938.
Cita MLA (8th ed.)Tunstall, Brian. William Pitt, Earl of Chatham. Hodder & Stoughton, 1938.
Atenció: Aquestes cites poden no estar 100% correctes.