Medieval Russian culture / 
Ed. by Henrik Birnbaum, Michael S. Flier. 
 - Berkeley ;  Los Angeles ;  London :  University of California Press,  1984. 
 - 395 p. 
 - California Slavic Studies  7 .
<br/><br/><label>ISBN: </label>0-520-04938-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political, economical and cultural life