Spector, Ivar 1898-.
An introduction to Russian history and culture /
Ivar Spector 
. - 4th edition 
. - Princeton : D. Van Nostrand Company, Inc.,  1965 
. - xxviii, 529 p.  ill., map.  23 cm. 
<br/>К.: Бібліогр. : c. 471-484, Index