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African water resources : challenges and opportunities for sustainable development | Bok | 556(6) A Sharma, Narendra / - Washington : The International Bank for Reconstruction and Development / The World Bank, cop1996. - 115 s. (World bank technical paper : 331) - Språk: Engelsk | Sharma, Narendra | cop1996 |
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Management of the water resources : of the Republic of South Africa | Bok | 556(6) M Cape Town : the Government Printer, 1986. - upaginert. - Språk: Engelsk | | 1986 |