Helmer Pedersen, Erik. “H. J. Habakkuk: Population Growth and Economic Development since 1750. Leicester, Leicester University Press, 1971. 110 S. £ 0.90”. Historisk Tidsskrift 12 (januar 1, 1973). Set december 25, 2025. https://tidsskrift.dk/historisktidsskrift/article/view/51463.