Hatt, Gudmund. “R. W. Williamson: The Social and Political Systems of Central Polynesia. Vol. I—III). (8°, 438, 496 Og 487 S. Og 6 Kort). Cambridge University Press. Cambridge 1924”. Geografisk Tidsskrift - Danish Journal of Geography 29 (January 1, 1926). Accessed December 5, 2025. https://tidsskrift.dk/geografisktidsskrift/article/view/47469.