Chubatyi, Nicholas D <br/><br/>
Medieval Rus'-Ukraine and the Emergence of the three East-Slav Nations 

 - New York  На правах рукопису  1965 
 -  157с.  29 cm 
<br/><br/><br/>English 
<br/><br/><label>Subjects--Index Terms: </label>History - Kyivan Rus', 860-1350