info:oai:icrisat:4634info:ofi/fmt:xml:xsd:bookSivakumarM V KSivakumar, M V KRenardCRenard, CKlaijM CKlaij, M CNtareB RNtare, B RFusselL KFussel, L KBationoABationo, A1990Natural Resources Management For Sustainable Agriculture In The Sudano-Sahelian Zoneproceeding