Human development report 2009 / 
overcoming barriers: human mobility and development. 
 - 1st  ed. 
 - New York :  UNDP,  2009. 
 - xiii, 227  p. 
<br/><br/><label>ISBN: </label>0230239043 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Emigration and immigration--Social aspects.<br/>Quality of life.<br/>Economic development--Social aspects.