APA (7th ed.) Citation

Oltermann, P., & Moss, S. (2009). The Second World War. The Guardian.

Chicago Style (17th ed.) Citation

Oltermann, Philip, and Stephen Moss. The Second World War. London: The Guardian, 2009.

MLA (8th ed.) Citation

Oltermann, Philip, and Stephen Moss. The Second World War. The Guardian, 2009.