Burns <br/><br/>
The Cambridge History of Medieval Political Thought c.350–c.1450 

 -  Cambridge University Press  Cambridge University Press  1988 
<br/><br/><label>ISBN: </label>9781139055390 
<br/><br/><label>Source: </label>EBOOK 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History