Columbia subject headings:
Evaluation research (Social action programs)--United States.
Legislation--United States.
Policy sciences.
United States. Congress.
Harvard subject headings:
Evaluation research (Social action programs)--United States
Legislation--United States.
Policy sciences
United States. Congress
Princeton subject headings:
Evaluation research (Social action programs)--United States.
Legislation--United States.
Policy sciences.
United States. Congress