Benson, Lyman <br/><br/>
Plant taxonomy:   Methods and principles  

 - New York:   The Ronald Press Company,   1962 
 - ix, 494p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant 
<br/><br/><label>Subjects--Index Terms: </label>Flowers  
<br/><br/><label>Universal Decimal Class. No.: </label>582   / K2