J. V. Jespersen, Knud. “C. Northcote Parkinson: Gunpowder, Treason and Plot. London, Weidenfeld and Nicolson 1976. 139 s., Ill. £5.25”. Historisk Tidsskrift 13 (januar 1, 1979). Set december 5, 2025. https://tidsskrift.dk/historisktidsskrift/article/view/52195.