Benson, Lyman. <br/><br/>
Plant classification /  
by Lyman Benson. 
 - New Delhi-110005 :   Oxford & IBH Publishing Co. ,   1957 
 - xiv, 688 p. :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany- Plant classification
<br/><br/><label>Dewey Class. No.: </label>I:11  / J7;1