Gleason, Henry A.  1882- <br/><br/>
The natural geography of plants / 
Henry A.Gleason and Arthur Cronquist. 
 - New York :  Columbia University Press,  1964. 
 - 420 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0231026684 
<br/><br/><label>LCCN: </label>64-15448 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Phytogeography.<br/>Botany--North America.