Southern, R. W..
The making of the Middle Ages /
R.W. Southern 
. - New Haven : London : Yale University Press,  1953 
. - 280 p.  21 cm. 
 - (European history )
<br/>К.: Бібліогр. : с. 259-265 
<br/><label>  ISBN: </label>0-300-00230-0