APA (7th ed.) Citation

Parkinson, R. (1988). The origins of world war one (1. publ., 6. impression.). Wayland.

Chicago Style (17th ed.) Citation

Parkinson, Roger. The Origins of World War One. 1. publ., 6. impression. London: Wayland, 1988.

MLA (9th ed.) Citation

Parkinson, Roger. The Origins of World War One. 1. publ., 6. impression. Wayland, 1988.

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