Institute of Arable Crops Research 

 - Harpenden, Hertfordshire :  AFRC,  [19--] 
 - 14 p.  : ilus. 
<br/><br/><label>LCCN: </label>4687 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--Investigacion--Gran Bretana.<br/>Agricultura--Gran Bretaña.