O'Brien, J. A. (1939). Why war?: Craving peace, getting war-- why? New York.
Chicago Style (17th ed.) CitationO'Brien, John A. Why War?: Craving Peace, Getting War-- Why? New York, 1939.
MLA (8th ed.) CitationO'Brien, John A. Why War?: Craving Peace, Getting War-- Why? New York, 1939.
Warning: These citations may not always be 100% accurate.