Encíclicas sociales. 

 - Santiago  Ediciones Paulinas  n. d. 
 - v. 
<br/><br/>Includes bibliographical footnotes. 
<br/><br/>Juan XXIII: Mater et magistra. Pacem in terris. Pablo VI: Populorum Progressio. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Church and social problems.--Catholic Church--Papal documents.