Kuczynski, R.  1876-1947 <br/><br/>
Population movements / 
by Robert R. Kuczynski 
 - Oxford :  The Clarendon Press,  1936 
 - 121 p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Emigration and immigration<br/>Population--Statistics