APA (7th ed.) Citation

Martel, G. (1987). The origins of the First World War / Gordon Martel. Longman.

Chicago Style (17th ed.) Citation

Martel, Gordon. The Origins of the First World War / Gordon Martel. London: Longman, 1987.

MLA (9th ed.) Citation

Martel, Gordon. The Origins of the First World War / Gordon Martel. Longman, 1987.

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