Isaac, Benjamin.
The limits of empire: the Roman army in the East /
Benjamin Isaac 
. - Revised edition 
. - Oxford : Clarendon Press,  1993 
. - xiii, 510 p.  tab., map., plan.  24 cm. 
<br/>К.: Бібліогр. : c. 451-495, Index 
<br/><label>  ISBN: </label>0-19-814952-2