Lundgreen-Nielsen, Kay. “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, bd. 14, januar 1983, https://tidsskrift.dk/historisktidsskrift/article/view/52557.