APA (7th ed.) Citation

Liddle, Bourne, & Whiteheadh Ian R. (2000). The Great World War, 1914-45: Volume 1. HarperCollins.

Chicago Style (17th ed.) Citation

Liddle, Bourne, and Whiteheadh Ian R. The Great World War, 1914-45: Volume 1. London: HarperCollins, 2000.

MLA (8th ed.) Citation

Liddle, et al. The Great World War, 1914-45: Volume 1. HarperCollins, 2000.