River basin management for sustainable development : proceedings of the 7th International symposium on River Basin management,held in Kruger National Park,South Africa,15-17 May,1995 / edited by Technical Division for Rever Basin Management of the water institute of Southern Africa(WISA). - South Africa : Pergamon Press , 1995. - xii,302p. : ills. ; 26cm . - Water science and technology; 32, 5-6, ; . - Water science and technology; 32, 5-6, ; .

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333.73 / TDE/R