APA (7th ed.) Citation

Darby, G. (1998). The origins of the First World War / Graham Darby. Longman.

Chicago Style (17th ed.) Citation

Darby, Graham. The Origins of the First World War / Graham Darby. Harlow: Longman, 1998.

MLA (9th ed.) Citation

Darby, Graham. The Origins of the First World War / Graham Darby. Longman, 1998.

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