O'Brien, John M. <br/><br/>
Medieval church 
by John M. O'Brien. 
 - Totowa, N.J.  Littlefield, Adams  1968. 
 - vii, 120 p.  21 cm. 
 - A Littlefield, Adams quality paperback no. 227 .
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>68019397  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Church history--Middle Ages, 600-1500.
<br/><br/><label>LC Class. No.: </label>BR252  / .O2 
<br/><br/><label>Dewey Class. No.: </label>270