Columbia subject headings:
Nagorno-Karabakh (Azerbaijan)--History--Autonomy and independence movements.
Nagorno-Karabakh Conflict, 1988-1994--Diplomatic history.
Harvard subject headings:
Nagorno-Karabakh (Azerbaijan)--History--Sources.
Nagorno-Karabakh (Azerbaijan)--History.
Nagorno-Karabakh Conflict, 1988-1994.
Princeton subject headings:
Nagorno-Karabakh (Azerbaijan)--History--Autonomy and independence movements.
Nagorno-Karabakh Conflict, 1988-1994--Diplomatic history.