APA (7th ed.) Citation

Overy, R. J. (1987). The origins of the Second World War / R. J. Overy. Longman.

Chicago Style (17th ed.) Citation

Overy, R. J. The Origins of the Second World War / R. J. Overy. London: Longman, 1987.

MLA (9th ed.) Citation

Overy, R. J. The Origins of the Second World War / R. J. Overy. Longman, 1987.

Warning: These citations may not always be 100% accurate.