River and lake basin development :   proceedings of the United Nati ons Interregional Meeting on River and Lake Basin Development with emph asis on the Africa region, Addis Ababa, Ethiopia, 10-15 October 1988 /  
United Nations Department of Technical Co-operation for Development . 
 - New York :   United Nations,   1990. 
 - xi, 428 p.  :    ill.,  maps  ;    28 cm. 
 - Natural resources :   no. 20. .
<br/><br/>  "ST/TCD/13." 
<br/><br/>Includes bibliography. 
<br/><br/><label>ISBN: </label>9211043395 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water resources development ----Africa.----Congresses.<br/>Water resources development ----Africa.----Congresses