Schwändt, E. (1960). Index of microfilmed records of the German Foreign Ministry and the Reich's Chancellery covering the Weimar period, deposited at the National Archives. The National Archives, National Archives and Records Service, General Services Administration.
Chicago-referens (17:e uppl.)Schwändt, Ernst. Index of Microfilmed Records of the German Foreign Ministry and the Reich's Chancellery Covering the Weimar Period, Deposited at the National Archives. Washington, D.C.: The National Archives, National Archives and Records Service, General Services Administration, 1960.
MLA-referens (8:e uppl.)Schwändt, Ernst. Index of Microfilmed Records of the German Foreign Ministry and the Reich's Chancellery Covering the Weimar Period, Deposited at the National Archives. The National Archives, National Archives and Records Service, General Services Administration, 1960.