TY - GEN AU - Kreps,Juanita M. ED - United States. TI - Economics of a stationary population: implications for older Americans U1 - 301.4350973 23 PY - 1977/// CY - Washington PB - National Science Foundation (U.S.) KW - Age distribution (Demography) KW - United States KW - Older people KW - Population N1 - NSF/RA-770024 ER -