Cita APA (7a ed.)

Willmott, H. P. (2013). World War 1. Dorling Kindersley.

Cita Chicago Style (17a ed.)

Willmott, H. P. World War 1. New York: Dorling Kindersley, 2013.

Cita MLA (8a ed.)

Willmott, H. P. World War 1. Dorling Kindersley, 2013.