The middle ages 
[editor] Brian Tierney. 
 - 5th ed. 
 - New York  Mc Graw Hill  1999. 
 - 349 p. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0073032905 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Middle Ages--History--Sources.<br/>Middle Ages--History.<br/>Civilization--Medieval.