Gregory, J. W.  1864-1932. <br/><br/>
Human migration and the future  :  a study of the causes, effects and control of emigration  / 
by J.W. Gregory. 
 - London :  Seeley, Service,  1928. 
 - 218 p. :  ill. ;  23cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Emigration and immigration.<br/>Human beings--Migrations.
<br/><br/><label>Dewey Class. No.: </label>325  / GRH 1928