Cita APA

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

Citación estilo Chicago

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

Cita MLA

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