Cita APA (7a ed.)

Martel, G. (2014). Month that changed the world: July 1914. Oxford University Press.

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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