Ngororo, Abdallah <br/><br/>
Extension techniques in Arusha district 

 - Dar es Salaam:  University of Dar es Salaam, 
 -  23cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural extension work<br/>Arusha region<br/>Tanzania
<br/><br/><label>LC Class. No.: </label>IRA S544.5.T3N4