BOESEN, JANNIK (ed) <br/><br/>
SUSTAINABLE AGRICULTURE IN SEMI-ARID TANZANIA 

 - DAR ES SALAAM:  DUP (1996) LTD.,  1999. 
<br/><br/><label>ISBN: </label>9976603118. 
<br/><br/><label>Dewey Class. No.: </label>631.419 678 SUS