Shannon, Albert Clement, <br/><br/>
The popes and heresy in the thirteenth century 
by Albert Clement Shannon. 
 - Villanova, Pa.  Augustinian Press  1980. 
 - 148pages:    23cm 
<br/><br/> Reprint of the author's thesis, Columbia, 1949, published by Augustinian Press, Villanova, Pa  Vita  Includes index 
<br/><br/>Bibliography: p 
<br/><br/><label>ISBN: </label>0404162282 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Papacy--History--To 1309<br/> Christian sects, Medieval<br/> Church history--Middle Ages, 600--1500