Columbia subject headings:
Latvian language--Grammar--Congresses.
Latvian language--Morphology--Congresses.
Latvian language--Syntax--Congresses.
Lithuanian language--Grammar--Congresses.
Lithuanian language--Morphology--Congresses.
Lithuanian language--Syntax--Congresses.
Harvard subject headings:
Latvian language--Grammar--Congresses.
Latvian language--Morphology--Congresses.
Latvian language--Syntax--Congresses.
Lithuanian language--Grammar--Congresses.
Lithuanian language--Morphology--Congresses.
Lithuanian language--Syntax--Congresses.
Princeton subject headings: