APA (7th ed.) Citation

(1933). Why war? A handbook for those who will take part in the second world war. London.

Chicago Style (17th ed.) Citation

Why War? A Handbook for Those Who Will Take Part in the Second World War. London, 1933.

MLA (8th ed.) Citation

Why War? A Handbook for Those Who Will Take Part in the Second World War. London, 1933.

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