Trees  : the Yearbook of Agriculture 

 - Washington, D.C.  : U.S. Government Printing Office  , 1949. 
 - 944 p.  : il. 
 - Yearbook of agriculture .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forests and Forestry<br/>Trees
<br/><br/><label>Dewey Class. No.: </label>634.9 UNI