Columbia subject headings:
Balkan Peninsula--History--Congresses.
Canetti, Elias, 1905-1994--Congresses.
Harvard subject headings:
Balkan Peninsula--History--Congresses.
Canetti, Elias, 1905-1994--Congresses.
Princeton subject headings:
Balkan Peninsula--History--Congresses.
Canetti, Elias, 1905---Philosophy--Congresses.