APA (7th ed.) Citation

Hartmann & Heuser. (2001). War, peace and world orders in European history. Routledge.

Chicago Style (17th ed.) Citation

Hartmann and Heuser. War, Peace and World Orders in European History. London: Routledge, 2001.

MLA (8th ed.) Citation

Hartmann and Heuser. War, Peace and World Orders in European History. Routledge, 2001.

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