International Congress of Plant Protection (7th : 1970 : Paris)   <br/><br/>
VIIth International Congress of Plant Protection : summaries of papers (papers in French, English and German)   (Book) 

 - s.l  s.n.  1970 
 - 866 p.  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops Plants, Protection of
<br/><br/><label>Universal Decimal Class. No.: </label>632.91 : 061.3 (100) INT  / 3182