Columbia subject headings:
Harvard subject headings:
French language--Political aspects--Congresses.
French language--Social aspects--Congresses.
Language policy--French-speaking countries--Congresses.
Linguistic minorities--French-speaking countries--Congresses.
Princeton subject headings:
French language--Political aspects--Congresses.
French language--Social aspects--Congresses.
Linguistic minorities--French-speaking countries--Congresses.
Sociolinguistics--Congresses.