Columbia subject headings:
Law--Congresses.
Law--United States--Congresses.
Public welfare--Law and legislation--United States--Congresses.
Harvard subject headings:
Law--Congresses
Law--United States--Congresses.
Law.
Public welfare--Law and legislation--United States--Congresses.
Princeton subject headings:
Law--Congresses.
Law--United States--Congresses.
Public welfare--Law and legislation--United States--Congresses.