United Nations Educational, Scientific and Cultural Organization
,
United Nations Environment Programme
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[Programme on Man and the Biosphere (MAB): Regional Meeting on Integrated Ecological Research and Training Needs in the Sahelian Region - Final Report. MAB report series No. 18]
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Programme on Man and the Biosphere (MAB): Regional Meeting on Integrated Ecological Research and Training Needs in the Sahelian Region - Final Report. MAB report series No. 18
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