Crop production in a weed-free environment. 

 - Oxford :    Blackwell Scientific Publictions,    1963. 
 - 114 p. :    ill. ;    25 cm. 
 - Symposium of the British Weed Control Council ;    no. 2 .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Weeds -- Control.
<br/><br/><label>Dewey Class. No.: </label>632.9 BRI