Jackson, Wes. <br/><br/>
New roots for agriculture / 
Wes Jackson. 
 - San Francisco :  Friends of the Earth,  1980. 
 - 155 p. ;  23 cm. 
 - Friends of the Earth .
<br/><br/> Open access. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural systems.<br/>Agricultural systems.