Columbia subject headings:
Vietnam War, 1961-1975--Diplomatic history.
Vietnam War, 1961-1975--Peace.
Harvard subject headings:
Vietnam War, 1961-1975--Peace
Vietnam--History--1945-1975.
Princeton subject headings:
Vietnam War, 1961-1975--Diplomatic history.
Vietnam War, 1961-1975--Peace.
Vietnam War, 1961-1975.
Vietnam--History--1945-1975.