Columbia subject headings:
Caucasus, South--Ethnic relations--20th century.
Caucasus, South--Foreign relations--Russia.
Caucasus, South--Foreign relations--Turkey.
Caucasus, South--History.
Harvard subject headings:
Caucasus, South--Ethnic relations--20th century.
Caucasus, South--Foreign relations--Russia.
Caucasus, South--Foreign relations--Turkey.
Caucasus, South--History
Princeton subject headings:
Caucasus, South--Ethnic relations--20th century.
Caucasus, South--Foreign relations--Russia.
Caucasus, South--Foreign relations--Turkey.
Caucasus, South--History.