Columbia subject headings:
Armenia--Ethnic relations.
Azerbaijan--Ethnic relations.
Nagorno-Karabakh (Azerbaijan)--History.
Harvard subject headings:
Armenia--Ethnic relations.
Azerbaijan--Ethnic relations.
Nagorno-Karabakh (Azerbaijan)--History.
Princeton subject headings:
Armenia--Ethnic relations.
Azerbaijan--Ethnic relations.
Nagorno-Karabakh (Azerbaijan)--History.