Columbia subject headings:
Slavic languages--Congresses.
Slavic literature--Congresses.
Harvard subject headings:
Slavic countries--Civilization--Congresses.
Slavic languages--Congresses.
Slavic literature--History and criticism--Congresses.
Slavic philology--Congresses.
Princeton subject headings:
Slavic countries--Civilization--Congresses.
Slavic languages--Congresses.
Slavic literature--History and criticism--Congresses.
Slavic philology--Congresses.