Columbia subject headings:
Armenia (Republic)--Ethnic relations.
Azerbaijan--Ethnic relations.
Nagorno-Karabakh (Azerbaijan)--History.
Harvard subject headings:
Nagorno-Karabakhskai︠a︡ avtonomnai︠a︡ oblastʹ (Azerbaijan)--Description and travel.
Nagorno-Karabakhskai︠a︡ avtonomnai︠a︡ oblastʹ (Azerbaijan)--History--20th century.
Nagorno-Karabakhskai︠a︡ avtonomnai︠a︡ oblastʹ (Azerbaijan)--Politics and government--20th century.
Princeton subject headings: