TY  - RPRT
A1  - Ortman, J.M.
A1  - Velkoff, V.A.
A1  - Hogan, H.
T1  - An aging nation: The older population in the United States
Y1  - 2014
PB  - U.S. Census Bureau 
CY  - Washington, D.C.
IS  - P25-1140

ER  -