,  <br/><br/>
Litterae Apostolicae  Motu Proprio Datae 

 - Romae  Typis Scholae Industrialis  1950 
 - 175p. 
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label> 300 
<br/><br/><label>Dewey Class. No.: </label>Z01  / L 718