Wandycz, Piotr Stefan.
Soviet-Polish relations, 1917-1921 /
Piotr S. Wandycz 
. - Cambridge : Harvard University Press,  1969 
. - ix, 403 p.  map  24 cm. 
 - Russian Research Center studies  59 .
<br/>К.: Бібліогр. : c. 293-309, Index 
<br/><label>  ISBN: </label>674-82780-5