Vernadsky, George <br/><br/>
Ancient Russia. 

 - New Haven  Yale University Press  1943. 
 - xiv, 425 p.  maps (part. fold.)  25 cm. 
 - His A history of Russia, v. 1 .
<br/><br/>"Sources": p. [382]-398. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Soviet Union.--History--To 1533.