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.
Lua i Stíl Chicago (17ú heag.)Voigt, Klaus, agus 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.
Lua MLA (8ú heag.)Voigt, Klaus, agus 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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.