Cita APA (7a ed.)

Christopher, J. (2016). British posters of the First World War. Amberley Publishing.

Cita Chicago Style (17a ed.)

Christopher, John. British Posters of the First World War. Stroud: Amberley Publishing, 2016.

Cita MLA (9a ed.)

Christopher, John. British Posters of the First World War. Amberley Publishing, 2016.