Primary Sources: Germany: Foreign Relations

Part II, From the First to the Second World War. Series F, Europe, 1919-1939
v. 1-3. Central Europe -- v. 4-9. Italy and south-eastern Europe -- v. 10-15. Southern Europe, Italy, Balkan States and Danubian States --v. 16-23. France -- v. 24. Portugal -- v. 25-27. Spain -- v. 28. The Netherlands -- v. 29-30. Belgium and Luxemburg -- v. 31-50. Germany -- v. 51-58. Poland -- v. 59-67. Scandinavia and Baltic States.

and the outbreak of hostilities between Great Britain and Germany on September 3, 1939
Presented by the Secretary of State for Foreign Affairs to Parliament by command of His Majesty.

From the archives of the German Foreign Ministry.

The Third Reich: First Phase.
Vol. 6 Nov. 1, 1936-Nov. 14, 1937

Background documents on Germany, 1944-1959, and a chronology of political developments affecting Berlin, 1945-1956

Select Documents on German Rule in Africa, China, and the Pacific 1884-1914

v. 1. Bismarck's relations with England, 1871-1890.--v. 2. From Bismarck's fall to 1898.--v. 3. The growing antagonism, 1898-1910.--v. 4. The descent to the abyss, 1911-1914
Also online from the HathiTrust Digital Library

Camden Society. Publications volumes 90, 98

Selections from the private correspondence of British representatives at Berlin and Foreign Secretary Lord Granville, 1871-1874, 1880-1885

Documents from the archives of the German Foreign Office. Edited by Raymond James Sontag and James Stuart Beddie.

Documents from the Archives of the the German Foreign Office

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microfilm reels

Microfilm reels

Being the Secret and Intimate Telegrams Exchanged between the Kaiser and the Tsar