Cita APA

Ryder, A. (1973). Twentieth Century Germany: From Bismarck to Brandt. Macmillan.

Citación estilo Chicago

Ryder, A.J. Twentieth Century Germany: From Bismarck to Brandt. London: Macmillan, 1973.

Cita MLA

Ryder, A.J. Twentieth Century Germany: From Bismarck to Brandt. Macmillan, 1973.