Helmer Pedersen, E. (1971) “E. L. Jones and S. J. Woolf (Ed.): Agrarian Change and Economic Development. The Historical Problems. London, Methuen, 1969. xi + 172 s. £2”., Historisk Tidsskrift, 12. Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/51173 (Set: 5 december 2025).