Trees 

 - Washington  United States Department Of Agriculture  1949 
 - xiv,943p.  23cm 
 - The yearbook of agriculture  .
<br/><br/><label>Subjects--Topical Terms: </label><br/>AGRICULTURE AND RELATED TCNOLOGYIES
<br/><br/><label>Dewey Class. No.: </label>630.58  / TRE