O'Brien, C. Bickford.
Muscovy and the Ukraine : from the Perejaslav agreement to the truce of Andrusovo, 1654-1667 /

. - Berkeley ; Los Angeles  : University of California Press,  1963 
. - VIII, 138 p.  23 cm. 
 - (University of California Publications in history ; vol. LXXIV )
<br/>К.: Бібліогр. : c. 135-138