Allin, Bushrod W Brunck, Hermann Goodrich, Carter Parker, William N ed Tryon, Frederick G <br/><br/>
Migration and economic opportunity  the report of the study of population redistribution 

 - Philadelphia  University of Pennsylvania press  1936 
 - xvii, 763p.; 24cm. 
 - History of American economy : studies and material for study .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic opportunity<br/>Economics<br/>Manpower<br/>Migration<br/>Migration policy