Willis, J.C. <br/><br/>
The birth and spread of plants 

 - Waltham :  Chronica Botanica,  1949 
 - 561 p. 
<br/><br/><label>LCCN: </label>54870 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fitogeografía.
<br/><br/><label>Dewey Class. No.: </label>581.9  / W55