Redaktionen, -. 1978. “KRAVIS, IRVING 8., ALAN HESTON Og ROBERT Summers: International Comparisons of Real Product and Purchasing Power. Baltimore: For The World Bank Af John Hopkins University Press, 1978. 264 Pp”. Nationaløkonomisk Tidsskrift 116 (januar). https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/63033.