Gleason, Henry A. <br/><br/>
The natural geography of plants / 
by Henry A Gleason and Arthur Cronquist 
 - viii, 420 pages :  illustrations, maps ;  25 cm. 
<br/><br/><label>LCCN: </label>64015448 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Phytogeography--North America.<br/>Botany--North America.
<br/><br/><label>Dewey Class. No.: </label>581.9