Columbia subject headings:
Older people--United States.
Senior power--United States.
United States--Population.
United States--Social conditions--1960-1980.
Harvard subject headings:
Older people--United States.
Senior power--United States.
United States--Population.
United States--Social conditions--1960-1980.
Princeton subject headings:
Older people--United States.
Senior power--United States.
United States--Population.
United States--Social conditions--1960-1980.