910 Gou T2 Gourou , Pierre , 1900- The tropical world ;its social and economic conditions and its future status. Tr. S. H. Beaver & E. D. Laborde . (London) Longmans (1969) xii , 196 p. fotos. , mapas. 22 cm. (Geographies for advanced study) Notas bibliograficas al pie de las pĂ ginas.