Ilsøe, Harald. “The Travel Diaries of T. R. Malthus. Edited by Patricia James. Cambridge University Press, for the Royal Economic Society, 1966. Xvi + 316 S. Ill. 45 Sh”. Historisk Tidsskrift, bd. 12, januar 1969, https://tidsskrift.dk/historisktidsskrift/article/view/50871.