Changing Environmental <br/><br/>
Research on man land interrelations in sei arid Tanzania 
Changing Environmental 
 - Nairobi  Regional Soil Conservation Unit  1996 
 - ix,157p.  ill.  30cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil degradation<br/>Agricultural enviromental
<br/><br/><label>LC Class. No.: </label>IRA S625.T3C45