Camper, N. Dwight. <br/><br/>
Research methods in weed science 

 - 3 ed. 
 - Champaign, Il. :  Southern Weed Science Society,  1986 
 - 486 p.  : ilus. ; gráfs 
<br/><br/><label>LCCN: </label>9966 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Herbicidas.<br/>Malas hierbas.
<br/><br/><label>Dewey Class. No.: </label>632.58  / C35 1986