Philip, Kjeld. “Ester Boserup: The Conditions of Agricultural The Economics of Agrarian Change under Population Pressure. George Allen & Unwin Ltd. London 1965. 124 Sider. 22 6 Sh”. Nationaløkonomisk Tidsskrift, bd. 103, januar 1965, https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/61201.