Catholic Church Pope.
Acta Apostolicae Sedis: commentarium officiale /

. - Citt ̀del Vaticano, etc. : [Typis Polyglottis Vaticanis],  1909- 
. - vol. ; num. 
<br/><br/><label>ISSN: </label>0001-5199 
 = Acta apostolica sedis, Commentarium officiale 
 =