Columbia subject headings:
Balkan Peninsula--Civilization.
Balkan Peninsula--Languages.
Balkan Peninsula--Religion.
Balkan Peninsula--Social life and customs.
Time perception.
Harvard subject headings:
Balkan Peninsula--Civilization.
Balkan Peninsula--Languages--Congresses.
Balkan Peninsula--Languages.
Balkan Peninsula--Religion.
Balkan Peninsula--Social life and customs.
Language and culture--Balkan Peninsula--Congresses.
Space and time in language--Congresses.
Time perception--Balkan Peninsula--Congresses.
Time perception.
Princeton subject headings:
Balkan Peninsula--Languages--Congresses.
Language and culture--Balkan Peninsula--Congresses.
Space and time in language--Congresses.
Time perception--Balkan Peninsula--Congresses.