Columbia subject headings:
Cambodia--Politics and government--1975-1979.
Cambodian-Vietnamese Conflict, 1977-
Thailand--Politics and government.
Vietnam War, 1961-1975--Missing in action.
Vietnam War, 1961-1975--Prisoners and prisons, American.
Vietnam--Politics and government--1975-
Harvard subject headings:
Princeton subject headings:
Cambodia--Politics and government--1975-.
Cambodian-Vietnamese Conflict, 1977-1991.
Thailand--Politics and government.
Vietnam War, 1961-1975--Missing in action.
Vietnam War, 1961-1975--Prisoners and prisons, American.
Vietnam--Politics and government--1975-