Columbia subject headings:
Harvard subject headings:
Flood control--Congresses
Flood control--Social aspects--Congresses.
Flood damage prevention--Congresses.
Floodplain management--Congresses.
Princeton subject headings:
Flood control--Congresses.
Flood control--Social aspects--Congresses.
Flood damage prevention--Congresses.
Floodplain management--Congresses.