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Analyse economique de la culture en couloirs a composante fourragere by Sumberg, J.E., McIntire, John M., Okali, C., Atta-Krah, A.N.

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La culture en allees dans la zone humide: Une association de l'elevage et de l'agriculture by Sumberg, J.E.

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Sheep and goats in humid West Africa: Proceedings of the workshop on small ruminant production systems in the humid zone of West Africa held in Ibadan, Nigeria, 23-26 January 1984 by Sumberg, J.E., Cassaday, K.

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Examining divergent strategies in farming systems research by Okali, C., Sumberg, J.E.

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Sheep and goats, men and women: Household relations and small ruminant development in southwest Nigeria by Okali, C., Sumberg, J.E.

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Collection and initial evaluation of Gliricidia sepium from Costa Rica by Sumberg, J.E.

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The potential of alley farming in humid West Africa - a re-evaluation by Sumberg, J.E., Atta-Krah, A.N.

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Genetic relations among five lines of Stylosanthes guyanensis by Sumberg, J.E., Miles, John W.

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Leuca-fence: Living fence for sheep using Leucaena leucocephala by Sumberg, J.E.

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Alley farming with Gliricidia sepium: Germplasm evaluation and planting density trial by Sumberg, J.E.

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Village production of West African Dwarf goats and sheep in Nigeria by Sumberg, J.E., Mack, S.D.

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A role for small ruminants in sustainable cropping systems in the humid zone of West Africa by Sumberg, J.E., Okali, C., Carew, B.A.R.

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Alley farming in the humid zone: Linking crop and livestock production by Sumberg, J.E.

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Economic analysis of alley farming with small ruminants by Sumberg, J.E., McIntire, John M., Okali, C., Atta-Krah, A.N.

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Small ruminant production under pressure: The example of goats in southeast Nigeria by Mack, S., Sumberg, J.E., Okali, C.

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Small ruminant feed production in a farming systems context by Sumberg, J.E.

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Leguminous fodder trees in the farming system. An overview of research at the Humid Zone Programme of ILCA in southwestern Nigeria by Atta-Krah, A.N., Sumberg, J.E., Reynolds, L.

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Studies with Gliricidia sepium for crop-livestock production systems in West Africa by Atta-Krah, A.N., Sumberg, J.E.

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Small ruminant production under pressure: The example of goats in southeast Nigeria by Mack, S.D., Sumberg, J.E., Okali, C.

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Two foliar diseases of Gliricidia sepium by Lenné, Jillian M., Sumberg, J.E.

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