Columbia subject headings:
Case grammar--Congresses.
Language and languages--Classification--Congresses.
Logic--Congresses.
Semantics--Congresses.
Harvard subject headings:
Case grammar--Congresses.
Language and languages--Classification--Congresses.
Logic--Congresses
Semantics--Congresses
Princeton subject headings:
Case grammar--Congresses.
Language and languages--Classification--Congresses.
Logic--Congresses.
Semantics--Congresses.