Proceedings 

 - Croydon, Eng. :  The Council,  1982 
 - 3 v.  : ilus. ; gráfs. 
<br/><br/><label>LCCN: </label>24392 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Herbicidas.<br/>Malas hierbas--Control.
<br/><br/><label>Dewey Class. No.: </label>632.58  / B76 1982