A Study of Soils and Soil Genesis in the Southwestern Upland of Nigeria Abayomi George Ojanuga Published: 1971 Total Pages: 580 Get eBook
Proceedings of the Joint Commissions I, IV, V, and VI of the International Society of Soil Science Conference on Savannah Soils of the Sub-Humid and Semi-Arid Regions of Africa and Their Management, Meridian Hotel, Tema, Ghana, West Africa, November, 24-26, 1975 H. B. Obeng Published: 1975 Total Pages: 242 Get eBook
Proceedings - Soil Science Society of America Soil Science Society of America Published: 1973 Total Pages: 1060 Get eBook
American & Canadian Doctoral Dissertations & Master's Theses on Africa, 1886-1974 Published: 1976 Total Pages: 396 Get eBook
