APA (7th ed.) Citation

Logue, M., & Conradi, P. (2011). The King's speech: How one man saved the British monarchy. Quercus.

Chicago Style (17th ed.) Citation

Logue, Mark, and Peter Conradi. The King's Speech: How One Man Saved the British Monarchy. London: Quercus, 2011.

MLA (8th ed.) Citation

Logue, Mark, and Peter Conradi. The King's Speech: How One Man Saved the British Monarchy. Quercus, 2011.