Darwin / 
edited by Philip Appleman. 
 - New York :  Norton,  1970. 
 - xiv, 674 p. 
<br/><br/> "A Norton critical edition" 
<br/><br/><label>ISBN: </label>0393099016 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Darwin, Charles, 1809-1882. <br/>Naturalists,--Biography.--Great Britain<br/>Evolution (Biology)--History.