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

 - Princeton :  Princeton University Press,  1960. 
 - National Bureau of Economic Research. Special conference series ;  11 .
 - National Bureau of Economic Research. Special conference series ;  National Bureau of Economic Research. Special conference series ;  11 .
<br/><br/> "A report of the National Bureau of Economic Research, New York." 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>LCCN: </label>60005753 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.<br/>Economic history -- 20th century.--Economic history -- 20th century.
<br/><br/><label>LC Class. No.: </label>HB885  / .U58 
<br/><br/><label>Dewey Class. No.: </label>301.32