Columbia subject headings:
France--Economic conditions--Congresses.
Regional planning--Technological innovations--France--Congresses.
Regionalism--Economic aspects--France--Congresses.
Technological innovations--Economic aspects--France--Congresses.
Harvard subject headings:
France--Economic conditions--Congresses.
Regional planning--Technological innovations--France--Congresses.
Regionalism--Economic aspects--France--Congresses.
Technological innovations--Economic aspects--France--Congresses.
Princeton subject headings:
France--Economic conditions--Congresses.
Regional planning--Technological innovations--France--Congresses.
Regionalism--Economic aspects--France--Congresses.
Technological innovations--Economic aspects--France--Congresses.