APA (7th ed.) Citation

United States. President (1913-1921 : Wilson). (1917). Why we are at war: Messages to the Congress, January to April, 1917. Harper & brothers.

Chicago Style (17th ed.) Citation

United States. President (1913-1921 : Wilson). Why We Are at War: Messages to the Congress, January to April, 1917. New York, London: Harper & brothers, 1917.

MLA (9th ed.) Citation

United States. President (1913-1921 : Wilson). Why We Are at War: Messages to the Congress, January to April, 1917. Harper & brothers, 1917.

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