Columbia subject headings:
Harvard subject headings:
Forestry schools and education--France--Congresses.
Forests and forestry--France--History--Congresses.
Princeton subject headings:
Forest ecology--Congresses.
Forest ecology--France--Congresses.
Forestry schools and education--France--Congresses.
Forests and forestry--Congresses.
Forests and forestry--France--Congresses.