The Pelican history of the church :  Vol.2. Western society and the Church in the Middle Ages / 
by R.W. Southern. 
 - [Harmondsworth] :  Penguin,  1970. 
<br/><br/><label>ISBN: </label>0140205039 
<br/><br/><label>Nat. Bib. No.: </label>GB7020816 
<br/><br/><label>LC Class. No.: </label>270.7  / C885C 
<br/><br/><label>Dewey Class. No.: </label>270.7  / C885C