Stebbins, G. Ledyard. <br/><br/>
Variation and evolution in plants 

 - New York :  Columbia University,  1957 (c.1950) 
 - 643 p. 
<br/><br/><label>LCCN: </label>57716 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evolución (Plantas)<br/>Variación (Botánica)
<br/><br/><label>Dewey Class. No.: </label>581.15  / S84