Barber, James David  <br/><br/>
Politics by humans:  research on American Leadership / 
James David Barber. 
 - Durham, N.C.:  Duke University Press,  1988. 
 - 517 p. ;   23 cm. 
<br/><br/>includes index 
<br/><br/><label>ISBN: </label>0822308371 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Presidents--United States--History.<br/>Political leadership--United States.<br/>Political culture--United States.