DUNN, Paul H. <br/><br/>
Proceedings of the Second International Symposium on Biological Control of Weeds 

 - England,  Commonwealth Agricultural Bur  eaux,      1973 
 - iv, 225p. 
<br/><br/><label>ISBN: </label>0-85198-299-9 
<br/><br/><label>Dewey Class. No.: </label>632.58