Leon F. Litwack <br/><br/>
North of slavery 
F. Litwack Leon  
 - London :  The University of Chicago ;  1962. 
 - xi, 318p. -  20cm. 
<br/><br/>Includes index and bibliography 
<br/><br/><label>Subjects--Personal Names: </label>
<br/><br/><label>LC Class. No.: </label>E185.9.L5