Lawrence, George H. M. <br/><br/>
Taxonomy of vascular plants 
Geroge H. M. Lawrence 
 - New Delhi  Oxford & IBH  1951 
 - xiii, 823p.;  22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vascular plant<br/>Botany
<br/><br/><label>Dewey Class. No.: </label>587.012  / LAW