Maintenance and improvement of soil productivity in the highlands of Ethiopia,Kenya,Madagascar and Uganda : an inventory of spatial and non-spatial survey and research data on natural resources and la 

 - Nairobi    African Highlands Initiative  1997 
<br/><br/><label>ISBN: </label>AHI TEchnical Report series no.6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil productivity.
<br/><br/><label>Dewey Class. No.: </label>631.826967 MAI