LUNDGREEN-NIELSEN, K. Roy Douglas: The Advent of War, 1939-40. London, Macmillan Press, 1978. 167 s. Roy Douglas: From War to Cold War, 1942-48. London, Macmillan Press, 1981. 224 s. Historisk Tidsskrift, [S. l.], v. 14, 1983. Disponível em: https://tidsskrift.dk/historisktidsskrift/article/view/52557. Acesso em: 28 mar. 2024.