Management of vertisols in sub-Saharan Africa : proceedings of a conference held at ILCA, Addis Ababa, Ethiopia, 31 August-4 September 1 987 - Jutzi, S. C. (Addis Ababa, Ethiopia : International Livestock Centre for Africa, 1988)
"September 1988."
Includes bibliographical references.
Keywords: Soil management; Vertisols -- Africa, Sub-Saharan -- Congresses