APA (7th ed.) Citation

Everitt, N. (1920). British secret service during the great war. Hutchinson & co.

Chicago Style (17th ed.) Citation

Everitt, Nicholas. British Secret Service During the Great War. London: Hutchinson & co, 1920.

MLA (8th ed.) Citation

Everitt, Nicholas. British Secret Service During the Great War. Hutchinson & co, 1920.

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