Columbia subject headings:
Missing in action--Archives--Catalogs.
Presidential libraries--United States--Catalogs.
Prisoners of war--United States--Archives--Catalogs.
Harvard subject headings:
Missing in action--Archives--Catalogs.
Presidential libraries--United States--Catalogs.
Prisoners of war--United States--Archives--Catalogs.
United States--History, Military--20th century--Sources--Bibliography--Catalogs.
Princeton subject headings:
Catalogs.
Missing in action--Archives--Catalogs.
Presidential libraries--United States--Catalogs.
Prisoners of war--United States--Archives--Catalogs.
United States--History, Military--20th century--Sources--Bibliography--Catalogs.