Gatzke, H. W. (1950). Germany's Drive to the West (Drang Nach Westen): A Study of Germany's Western War Aims during the First World War. Johns Hopkins Press.

Gatzke, Hans W. Germany's Drive to the West (Drang Nach Westen): A Study of Germany's Western War Aims During the First World War. Baltimore: Johns Hopkins Press, 1950.

Gatzke, Hans W. Germany's Drive to the West (Drang Nach Westen): A Study of Germany's Western War Aims During the First World War. Johns Hopkins Press, 1950.