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By: Atkinson, Robert I. - Bashir, Sultana. - World Conservation Monitoring CentreEdition:Publication info: WCMC,Volume: 1988Series:Holding Institution: UNEP-WCMC, CambridgeSubjects:BHL Collections:
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By: World Bank. - World Conservation Monitoring CentreEdition:Publication info: Washington, DC, USA, World Bank, 1993Volume: v.1: Occidental and Central AfricaSeries:Holding Institution: UNEP-WCMC, CambridgeSubjects:BHL Collections: