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Stresemann and the DNVP : reconciliation or revenge in German foreign policy 1924 - 1928
Grathwol, Robert P., (1980)
Documents on German foreign policy 1918 - 1945 : [From the archives of the German Foreign Ministry]
(1949)
German foreign Policy, 1890 - 1914, and colonial policy to 1914 : a handbook and annotated bibliography
Carlson, Andrew R., (1970)