The Cambridge medieval history / 
planned by J.B. Bury ; edited by H.M. Gwatkin ... [et al.] 
 - Cambridge :  Cambridge University Press,  1922-1968. 
 - 8 v. : 
<br/><br/> v. 4, pt. 1-2, published 1966-1967. 
<br/><br/><label>ISBN: </label>521045347 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Middle Ages
<br/><br/><label>Dewey Class. No.: </label>940.1  / Ca