APA (7th ed.) Citation

Hadley, F., & Pegler, M. (2013). Posters of the Great War. Pen & Sword Military.

Chicago Style (17th ed.) Citation

Hadley, Frédérick, and Martin Pegler. Posters of the Great War. Barnsley, South Yorkshire: Pen & Sword Military, 2013.

MLA (9th ed.) Citation

Hadley, Frédérick, and Martin Pegler. Posters of the Great War. Pen & Sword Military, 2013.