Cita APA (7a ed.)

Hague, W. (2005). William Pitt the Younger. Harper Perennial.

Cita Chicago Style (17a ed.)

Hague, William. William Pitt the Younger. London, [etc.]: Harper Perennial, 2005.

Cita MLA (9a ed.)

Hague, William. William Pitt the Younger. Harper Perennial, 2005.