Pius XI  <br/><br/>
Christian Education of Youth :   Encyclical Letter / 
Pius XI.  
 - New York :  Paulist Press ;  1929. 
 - 48 p. ; 
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label>   
<br/><br/><label>Dewey Class. No.: </label>G12.1  / 1929