United States Government Printing Office. (1953). Documents on German Foreign Policy 1918-1945.
Lua i Stíl Chicago (17ú heag.)United States Government Printing Office. Documents on German Foreign Policy 1918-1945. Washington, 1953.
Lua MLA (8ú heag.)United States Government Printing Office. Documents on German Foreign Policy 1918-1945. 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.