John A. Leopold: Alfred Hugenberg. The Radical Nationalist Campaign against the Weimar Republic. New Haven and London. Yale University Press, 1977. 298 s.

Lundgreen-Nielsen, K. (1979). John A. Leopold: Alfred Hugenberg. The Radical Nationalist Campaign against the Weimar Republic. New Haven and London. Yale University Press, 1977. 298 s. Historisk Tidsskrift, 13. Hentet fra https://tidsskrift.dk/historisktidsskrift/article/view/52110