Justin Swanton <br/><br/>
Ancient Battle Formations 

 -  Pen & Sword Military  2020 
<br/><br/><label>ISBN: </label>9781526740069 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Ancient<br/> Military <br/>HISTORY <br/>Infantry drill and tactics--History--To 1500.