Halperin, Charles J..
Russia and the Golden Horde: the Mongol impact on medieval Russian history /
Charles J. Halperin 
. - Bloomington : Indiana University Press,  1985 
. - 180 p.  24 cm. 
<br/>К.: Бібліогр. : c. 158-174, Index 
<br/><label>  ISBN: </label>0-253-35033-6