G. Feilberg., C. “Pierre Gourou: The Tropical World. Its Social and Economic Conditions and Its Future Status. Translated by E. D. Laborde. Longmans. London 1961. 159 s., 16 Kort I Teksten Og 16 Billedplancher. 14,5x22,5 Cm. 21 Sh”. Geografisk Tidsskrift - Danish Journal of Geography 61 (January 1, 1962). Accessed December 5, 2025. https://tidsskrift.dk/geografisktidsskrift/article/view/46726.