Oman, Charles <br/><br/>
A History of the Art of War 
The Middle Ages from the Fourth to the Forteenth Century 
 - London  Methun & Co.  1898 
 - 665 
<br/><br/><label>Subjects--Personal Names: </label> Public Administration 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public Administration