Columbia subject headings:
Armenia (Republic)--History--1920-1991.
Armenia (Republic)--History--1991-
Nagorno-Karabakh (Azerbaijan)--History.
Nagorno-Karabakh Conflict, 1988-1994.
Harvard subject headings:
Armenia (Republic)--History--1920-1991.
Armenia (Republic)--History--1991-
Nagorno-Karabakh (Azerbaijan)--History.
Nagorno-Karabakh Conflict, 1988-1994.
Princeton subject headings: