Economics of a stationary population :  implications for older Americans / 
by 	Juanita M Kreps ...[et al.] 
 - 	Washington :  National Science Foundation (U.S.) ,  1977 
 - 	91 p. ;  26 cm. 
<br/><br/> NSF/RA-770024 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Age distribution (Demography)--United States<br/>Older people--United States
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--Population.
<br/><br/><label>Dewey Class. No.: </label>301.4350973