Columbia subject headings:
Armenia (Republic)--Relations--Azerbaijan.
Azerbaijan--Relations--Armenia (Republic)
Nagorno-Karabakh (Azerbaijan)--History.
Harvard subject headings:
Nagorno-Karabakh (Azerbaijan)--Ethnic relations.
Nagorno-Karabakh (Azerbaijan)--Politics and government.
Princeton subject headings:
Nagorno-Karabakh (Azerbaijan)--Ethnic relations.
Nagorno-Karabakh (Azerbaijan)--Politics and government.