Collins, Roger.
Early medieval Europe, 300-1000 /
Roger Collins 
. - 2nd edition 
. - New York : Palgrave,  1999 
. - xxvi, 533 p.  tab.  21 cm. 
 - (Palgrave history of Europe )
<br/>К.: Бібліогр. : с. 501-513 
<br/><label>  ISBN: </label>0-312-21886-9