Potter, David Morris. <br/><br/>
The impending crisis, 1848-1861 / 
by David M. Potter ; completed and edited by Don E. Fehrenbacher. 
 - 1st ed. 
 - New York :  Harper & Row,  1973 
 - ix, 638 p. ;  21 cm. 
 - The New American Nation series .
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sectionalism (United States)
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--History--Causes.--Civil War, 1861-1865
<br/><br/><label>Subjects--Index Terms: </label>Lịch sử Hoa Kỳ Chính quyền Abraham Lincôn 
<br/><br/><label>Dewey Class. No.: </label>973.7/11  / POT 1973