Columbia subject headings:
Prisoners of war--United States--Archives--Catalogs.
Prisoners of war--Vietnam--Archives--Catalogs.
United States. National Archives and Records Administration--Catalogs.
Vietnam War, 1961-1975--Missing in action--Archival resources.
Vietnam War, 1961-1975--Prisoners and prisons--Archival resources.
Harvard subject headings:
Prisoners of war--United States--Archives--Catalogs.
Prisoners of war--Vietnam--Archives--Catalogs.
United States. National Archives and Records Administration--Catalogs.
Vietnam War, 1961-1975--Missing in action--Archival resources.
Vietnam War, 1961-1975--Prisoners and prisons--Archival resources.
Princeton subject headings:
Prisoners of war--United States--Archives--Catalogs.
Prisoners of war--Vietnam--Archives--Catalogs.
United States. National Archives and Records Administration--Catalogs.
Vietnam War, 1961-1975--Missing in action--Archival resources.
Vietnam War, 1961-1975--Prisoners and prisons--Archival resources.