John Xxiii, Pope. <br/><br/>
Mater Et Magistra :   Encyclical Letter / 
Pope John Xxiii. 
 - Washington :  Popes Speaks Magazine ;  1961. 
 - 51 p. ; 
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label>   
<br/><br/><label>Dewey Class. No.: </label>G12.1  / 1961