Lawrence, George H. M. <br/><br/>
Taxonomy of vascular plants/ 
George H. M. Lawrence 
 - New York,  Macmillan  1951 
 - xiii, 823p.; ill.  Hbk. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plants--Classification.
<br/><br/><label>LC Class. No.: </label>QK93.L38 1951