Columbia subject headings:
Education and state--United States.
Energy policy--United States.
Environmental policy--United States.
Public health--United States.
United States--Social policy.
Harvard subject headings:
Education and state--United States.
Energy policy--United States
Environmental policy--United States
Public health--United States
United States--Social policy.
Princeton subject headings:
Education and state--United States.
Energy policy--United States.
Environmental policy--United States.
Public health--United States.
United States--Social policy.