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A history of the Kikuyu : 1500-1900
Muriuki, Godfrey, (1974)
Rural development in the Kenya Highlands. A report of geographical field work carried out during August 1971
Fordham, Paul, (1973)
The Kenya Highlands : land use and agricultural development
Odingo, Richard S., (1971)
Studies toward a sustainable agriculture in Northern Ghana : an internal working paper on agro-ecosystems
Bennett, Alice, (1979)