Sustainable agriculture Extension Manual :  For Eastern and Southern Africa / by 
International Institute of Rural Reconstruction 
 - Nairobi :  IIRR,  1998. 
 - xx, 241 pages :  illustrations ;  27 cm. 
<br/><br/><label>ISBN: </label>0-942717-91-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sustainable agriculture.<br/>Agricultural systems.<br/>Agricultural ecology.
<br/><br/><label>Dewey Class. No.: </label>630.7156