Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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