Kaplan, Justin <br/><br/>
Mr Clemens and Mark Twain / 
Justin Kaplan 
 - Harmondsworth :  Penguin Books,  1970 
 - 650 p. ;  19 cm. 
 - Pelican Biographies .
 - Pelican Biographies .
<br/><br/><label>ISBN: </label>140212019 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humorists, American--Biography--19th century<br/>Authors, American--Biography--19th century<br/>Journalists--Biography--United States