Columbia subject headings:
Harvard subject headings:
Romance languages--Congresses.
Romance languages--Glossaries, vocabularies, etc.--Congresses.
Romance languages--Rhetoric--Congresses.
Romance languages--Technical Romance--Congresses.
Science--Language--Congresses.
Princeton subject headings:
Romance languages--Glossaries, vocabularies, etc.--Congresses.
Romance languages--Rhetoric--Congresses.
Science--Language--Congresses.