Science and technology of organic farming / 
Allen V. Barker. 
 - Boca Raton, FL :  CRC Press,  c2010. 
 - xii, 224p. :  ill. ;  25 cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9781439816127 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural chemistry.<br/>Agricultural innovations.<br/>Organic faming.
<br/><br/><label>Dewey Class. No.: </label>Barker, Allen V.