Graubard, stephen <br/><br/>
The presidents :  the transformation of the american presidency from  Theodore roosevelt to barack Obama.   / 
Stephen Graubard. 
 - London :  Penguin Books,  2011 
 - xiv, 948 p. 
<br/><br/><label>ISBN: </label>9780141042459 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Presidents--History--United States--20th century.<br/>Executive power--History--United States--20th century.<br/>Political leadership--History--United States--20th century.<br/>Presidentes--Historia.--Estados Unidos<br/>Poder ejecutivo--Estados Unidos<br/>Estados Unidos--Historia.<br/>iderazgo político--Estados Unidos
<br/><br/><label>LC Class. No.: </label>G774p  / 2011 002 E 176.1  / G774p 2009