Medefind, H. (1975). Organization Europe: The eighteen and the nine and among them the Germans. Europa Union Verlag.
Lua i Stíl Chicago (17ú heag.)Medefind, Heinz. Organization Europe: The Eighteen and the Nine and Among Them the Germans. Bonn: Europa Union Verlag, 1975.
Lua MLA (9ú heag.)Medefind, Heinz. Organization Europe: The Eighteen and the Nine and Among Them the Germans. Europa Union Verlag, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.