Columbia subject headings:
Harvard subject headings:
Disaster relief--Political aspects--United States--Longitudinal studies--Congresses.
Disaster relief--Research--United States--Congresses.
Disaster relief--United States--Congresses.
Natural disasters--United States--Congresses.
Princeton subject headings:
Disaster relief--Research--United States--Congresses.
Disaster relief--United States--Congresses.
Disaster relief--United States--Political aspects--Longitudinal studies--Congresses.
Natural disasters--United States--Congresses.