Demographic and economic change in developed countries,  a conference of the Universities-National Bureau Committee for Economic Research. 

 - Princeton,  Princeton University Press,  1960. 
 - xi, 536 p.  illus., maps.  24 cm. 
<br/><br/> "A report of the National Bureau of Economic Research, New York." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population Developed countries <br/>Socio Economic change Developed countries 
<br/><br/><label>Dewey Class. No.: </label>301.32  / NAT N60D