Columbia subject headings:
Cambodia--History--Civil War, 1970-1975.
United States--Politics and government--1974-1977.
United States. Congress.
Vietnam War, 1961-1975--United States.
Harvard subject headings:
Cambodia--History--Civil War, 1970-1975
United States--Politics and government--1974-1977.
United States. Congress.
Vietnam War, 1961-1975--United States
Princeton subject headings:
Cambodia--History--Civil War, 1970-1975.
United States--Politics and government--1974-1977.
United States. Congress
Vietnam War, 1961-1975--United States.