Lawrence, George H. M.  <br/><br/>
Texonomy of vascular plants / 
George H. M. Lawrence 
 - 1st ed.  
 - New delhi :  Oxford & IBH publication,   1951. 
 - 823 p. :   22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Taxonomy