Columbia subject headings:
Harvard subject headings:
English language--Grammar--Congresses.
English language--Syntax--Congresses.
Germanic languages--Grammar--Congresses.
Germanic languages--Syntax--Congresses.
Polish language--Grammar--Congresses.
Polish language--Syntax--Congresses.
Princeton subject headings:
Germanic languages--Grammar, Comparative--Slavic--Congresses.
Germanic languages--Morphosyntax--Congresses.
Germanic languages--Syntax--Congresses.
Slavic languages--Grammar, Comparative--Germanic--Congresses.
Slavic languages--Morphosyntax--Congresses.
Slavic languages--Syntax--Congresses.