Elias, Eyasu <br/><br/>
Is soil fertility declining? perspectives on environmental change in Southern Ethiopia 

 - United Kingdom  Drylands programme  1998 
 - 32p.  24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil fertility
<br/><br/><label>LC Class. No.: </label>EAF PAM S590.6.E8E45 No.2