Organic farming :  current technology and its role in a sustainable agriculture : proceedings of a symposium / 
sponsored by Division S-3, S-4, S-6, S-8, and A-5 of the American Society of Agronomy ; editorial committee : D. F. Bezdicek ... [et al.]. 
 - Madison, WI :  The Societies,  1984. 
 - 192 p. :  ill. ;  23 cm. 
 - ASA special publication ;  no. 46 .
<br/><br/> Includes bibliographies. 
<br/><br/><label>ISBN: </label>0891180761 
<br/><br/><label>LCCN: </label>83-73185 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Organic farming--Congresses.