> Publishers' series
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184:
Land cover changes in the upper great Ruaha (Tanzania) and the Upper Awash (Ethiopia) river basins and their potential implications for groundwater resources Kiran M. Chandrasekharan, Karen G. Villholth, Japhet J. Kashaigili, Gebrehaweria Gebregziabher and Paulo J. Mandela
Colombo: Inst., 1998-
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183:
Living customary water tenure in rights-based water management in Sub-Saharan Africa Barbara van Koppen
Colombo: Inst., 1998-