Kaplan, Justin. <br/><br/>
Mr. Clemens and Mark Twain :  a biography. 

 - New York :  Simon & Schuster,  1966. 
 - 424 p. 
<br/><br/><label>ISBN: </label>671207075 : 
<br/><br/><label>Subjects--Personal Names: </label><br/>Twain, Mark. 1835-1910. 
<br/><br/><label>LC Class. No.: </label>PS1331  / .A2K37