Citazione Stile APA (7a Edizione)

Barnes, H. E. (1926). The genesis of the world war: An introduction to the problem of war guilt. Alfred A. Knopf.

Citazione stile Chigago Style (17a edizione)

Barnes, Harry Elmer. The Genesis of the World War: An Introduction to the Problem of War Guilt. New York: Alfred A. Knopf, 1926.

Citatione MLA (9a ed.)

Barnes, Harry Elmer. The Genesis of the World War: An Introduction to the Problem of War Guilt. Alfred A. Knopf, 1926.