Lundgreen-Nielsen, K. (1983) “William Carr: A History of Germany 1815-1945. 2. edition. London, Edward Arnold, 1979. 414 s”., Historisk Tidsskrift, 14. Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/52606 (Set: 24 december 2025).