Columbia subject headings:
Cambodia--History--1975-1979--Periodicals.
Indochina--History--1945---Chronology--Periodicals.
Laos--History--1975---Periodicals.
Vietnam--History--1975---Periodicals.
Harvard subject headings:
Cambodia--History--1975---Periodicals.
Indochina--History--1945---Chronology--Periodicals.
Laos--History--1975---Periodicals.
Vietnam--History--1975---Periodicals.
Princeton subject headings: