Long, Clarence D. <br/><br/>
Labour force under changing income and employment 
by Clarence D. Long 
 - Princeton  Princeton University Press  1958 
 - 439p. 
 - General series; no.65 .
<br/><br/> National Bureau of Economic Research 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labour
<br/><br/><label>Dewey Class. No.: </label>R N213