International Union of Forestry Research Organizations   <br/><br/>
Internationally dangerous forest tree diseases  (Book) 

 - Washington, D.C.  U.S. Department of Agriculture  1963 
 - 122p.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trees--Diseases and pests
<br/><br/><label>Universal Decimal Class. No.: </label>634.0.44:632 INT  / 8059