Koepf, Herbert H. <br/><br/>
Bio-dynamic agriculture 

 - New York :  The Anthoposophic Press,  1976 
 - 429 p. 
<br/><br/><label>LCCN: </label>28517 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura orgánica.
<br/><br/><label>Dewey Class. No.: </label>631.584  / K6