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Atlantropa : Wesenszüge eines Projekts
Sörgel, Herman, (1948)
African farmers in Rhodesia : old and new peasant communitie in Karangaland
Weinrich, A. K. H., (1975)
Le tecniche e l'industria per la valorizzazione delle risorse dei paesi aridi. Idee e conclusioni del 9 Convegno Economico Italo-Africano in Calabria, Sett. 1966
(1968)
The transport pattern of British West Africa
Church, R. J. Harrison, (1956)
West Africa : environment and policies
Church, Ronald J. Harrison, (1976)
Some geographical aspects of West African development
Church, R. J. Harrison, (1966)