UNESCO <br/><br/>
Proceeding on study of tropical vegetation 

 -  1958 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>52957 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>J.192, J81