Richards, Jeffrey.
Consul of God: the life and times of Gregory the Great /
Jeffrey Richards 
. - London : Boston : Henley : Routledge & Kegan Paul,  1980 
. - x, 309 p.  23 cm. 
<br/>К.: Бібліогр. : c. 293-302, Index 
<br/><label>  ISBN: </label>0-7100-0346-3 
<br/><br/><label>Subjects--Personal Names: </label><br/>Gregory I  the Great, Pope  ca. 540-604