XXI :  ¿otro siglo violento? / 
Pedro Gómez Bosque, Amado Ramírez Villafáñez (directores). 
 - 1 online resource. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9788490520154 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Violence.<br/>Aggressiveness.
<br/><br/><label>LC Class. No.: </label>BF575.A3 ebook