Readings in medieval history /
edited by Patrick J. Geary 
. - 4th edition 
. - North York : Tonawanda : University of Toronto Press,  2010- 
. - 2 v.  22 cm. 
<br/> V. 1. The early Middle Ages  <br/>   <br/>
<br/><label>  ISBN: </label>978-1-4426-0120-8