Voigt, K., & Lipgens, W. (1986). Plans for European Union in Great Britain and in Exile 1939 - 1945: Ideas of German Exiles on the Postwar Order in Europe. Walter de Gruyter.
Chicago-referens (17:e uppl.)Voigt, Klaus, och Walter Lipgens. Plans for European Union in Great Britain and in Exile 1939 - 1945: Ideas of German Exiles on the Postwar Order in Europe. Berlin; New York: Walter de Gruyter, 1986.
MLA-referens (8:e uppl.)Voigt, Klaus, och Walter Lipgens. Plans for European Union in Great Britain and in Exile 1939 - 1945: Ideas of German Exiles on the Postwar Order in Europe. Walter de Gruyter, 1986.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.