Ullmann, Walter <br/><br/>
Historia del pensamiento politico en la Edad Media 
Walter Ullman. 
 - 1a. ed. 
 - Barcelona  Ariel  1983. 
 - 240 p.  22 cm. 
 - Historia .
<br/><br/> Original title: A history of political thought : the Middle Ages.  Translated by: Rosa Vilarʹo Piñol.  Includes index. 
<br/><br/>Bibliography: p. [221]-228. 
<br/><br/><label>ISBN: </label>8434465396 
<br/><br/><label>LCCN: </label>ocm11683412  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political science.--History.--Europe