Sonntag, Nathaniel L. <br/><br/>
Censorship of Special Classes of Books( Canons 1387-1391) :   A History and Commentary / 
Nathaniel L. Sonntag 
 - Washington :  Catholic University of America Press ;  1947. 
 - 147 p. ; 
 - Catholic University of America Canon Law Studies;   262 .
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label>   
<br/><br/><label>Dewey Class. No.: </label>G04.6  / SO594