Campbell, Duncan B, <br/><br/>
Roman Legionary Fortresses 27 BC–AD 378 : 

 -  Osprey Publishing,  2006. 
<br/><br/><label>ISBN: </label>9781841768953 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History.
<br/><br/><label>Dewey Class. No.: </label>623.1937  / CAM