APA (7th ed.) Citation

Overy, R. J. (1998). The origins of the Second World War (2. ed.). Longman.

Chicago Style (17th ed.) Citation

Overy, Richard J. The Origins of the Second World War. 2. ed. London <<[u.a.]>>: Longman, 1998.

MLA (9th ed.) Citation

Overy, Richard J. The Origins of the Second World War. 2. ed. Longman, 1998.