Columbia subject headings:
Economic assistance, Domestic--United States.
Federal aid to education--United States.
Income--United States.
Poor--United States.
United States--Economic conditions--1961-1971.
Harvard subject headings:
Economic assistance, Domestic--United States.
Income--United States
Poor--United States
Princeton subject headings:
Economic assistance, Domestic--United States.
Income--United States.
Poor--United States.