Columbia subject headings:
Gerontology--United States.
Older people--United States--Psychology.
Older people--United States--Social conditions.
Harvard subject headings:
Gerontology--United States
Older people--United States--Psychology
Older people--United States--Social conditions
United States--Social conditions--1980-2020
Princeton subject headings:
Gerontology--United States.
Older people--United States--Psychology.
Older people--United States--Social conditions.