APA (7th ed.) Citation

Marr. (2012). A history of the world. Macmillan.

Chicago Style (17th ed.) Citation

Marr. A History of the World. London: Macmillan, 2012.

MLA (8th ed.) Citation

Marr. A History of the World. Macmillan, 2012.

Warning: These citations may not always be 100% accurate.