APA (7th ed.) Citation

Martel, G. (2014). The month that changed the world: July 1914 (First edition.). Oxford University Press.

Chicago Style (17th ed.) Citation

Martel, Gordon. The Month That Changed the World: July 1914. First edition. Oxford ; New York: Oxford University Press, 2014.

MLA (9th ed.) Citation

Martel, Gordon. The Month That Changed the World: July 1914. First edition. Oxford University Press, 2014.