Livestock and sustainable nutrient cycling in mixed farming systems of sub-Saharan Africa : proceedings of an international conference, International Livestock Centre for Africa (ILCA) Addis Ababa, Ethiopia, 22-26 November 1993 - Powell, J.M..et al; Powell, J. M. (Addis Ababa, Ethiopia : International Livestock Centre for Africa, 1994)
"International Conference on Livestock and Sustainable Nutrient Cycling in Mixed Farming Systems of Sub-Saharan Africa"--Vol. 1, p. 1.
Keywords: Agropastoral systems -- Congresses; Nutrient cycles -- Congresses; Agricultural ecology -- Congresses; Livestock -- Ecology -- Congresses; Farm manure -- Congresses