Roberts, Penfield <br/><br/>
An introduction to American politics. 

 - New York :  Harcourt, Brace,  1926. 
 - 225 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ESTADOS UNIDOS<br/>POLITICA
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>DERECHO POLITICO