APA citiranje

Ropke, W. (1946). The Solution of the German Problem. New York: G. P. Putnam's Sons.

Trích dẫn kiểu Chicago

Ropke, Wilhelm. The Solution of the German Problem. New York: G. P. Putnam's Sons, 1946.

MLA citiranje

Ropke, Wilhelm. The Solution of the German Problem. New York: G. P. Putnam's Sons, 1946.