Wester, Horace V. <br/><br/>
Spraying and other controls for diseases and insects that attack trees and shrubs 

 - Washington :  Government Printing Office,  1968 
 - 52 p. 
 - Tree preservation bulletin  ; 6 .
 - Tree preservation bulletin  ; 6 .
<br/><br/><label>LCCN: </label>53567 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Árboles--Plagas.<br/>Bosques--Protección.