Grassroots indicators for desertification :   experience and perspe ctives from Eastern and Southern Africa /  
edited by Hellen Hambley a nd Tobias Onweng Angura. 
 - Ottawa :   Intenational Development Research Centre ,   1996. 
 - viii , 168 p. :    ill. ;    25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Desertification --Control --Africa , Eastern.----<br/>Desertification --Control --Africa , Southern.----<br/>Sustainable development ----Africa, Eastern.----<br/>Sustainable development ----Africa, Southern.----