Halecki, Oskar  (1891-1973). <br/><br/>
Polish-Russian Relations-Past and Present / 
by Oscar Halecki. 
 - [S.l. :  s.n.],  1943. 
 - [15] s.  ;  21 cm. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Polska --a Rosja