Columbia subject headings:
Harvard subject headings:
Cambodia--History--1975-
Cambodia--History--Civil War, 1970-1975
Cambodian-Vietnamese Conflict, 1977-1991
Political atrocities--Cambodia
Princeton subject headings:
Cambodia--History--1975-.
Cambodia--History--Civil War, 1970-1975.
Cambodian-Vietnamese Conflict, 1977-1991.
Political atrocities--Cambodia.