Waafrica na ardhi yao = Africans and their land - Humphrey, Norman (Nairobi : Highway Press, 1948)
Book 2: crops and soil fertility.
Text in English and Swahili
Contents: 1. The land and its problems 2. Crops and soil fertility 3 . Animals and soil fertitilty 4. The problem of soil erosion 5. Forests , trees and the farmers 6. Food and farmer 7. Balanced farming
Keywords: Agriculture -- Africa