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1Agricultural alternatives and nutritional self-sufficiency for a sustainable agricultural system that respects man and his environment Agricultural alternatives and nutritional self-sufficiency for a sustainable agricultural system that respects man and his environmentby IFOAM International Scientific Conference 7th 1989 Oaugadougou, Djigma, A. editor/a, Nikiema, E. editor/a, Lairon, D. editor/a
Published 1989Texto bibliotecaECOSUR