Columbia subject headings:
Harvard subject headings:
Gironde Estuary (France)--Economic conditions--Congresses.
Gironde Estuary (France)--History--Congresses.
Gironde River Region (France)--Economic conditions--Congresses.
Gironde River Region (France)--History--Congresses.
Princeton subject headings:
Gironde River Region (France)--Economic conditions--Congresses.
Gironde River Region (France)--History--Congresses.