APA (7th ed.) Citation

Aldrich, R., & McKenzie, K. (2014). The Routledge history of Western empires. Routledge.

Chicago Style (17th ed.) Citation

Aldrich, Robert, and Kirsten McKenzie. The Routledge History of Western Empires. London: Routledge, 2014.

MLA (9th ed.) Citation

Aldrich, Robert, and Kirsten McKenzie. The Routledge History of Western Empires. Routledge, 2014.