Columbia subject headings:
New York World's Fair (1939-1940 : New York, N.Y.)--History.
New York World's Fair (1964-1965 : New York, N.Y.)--History.
Harvard subject headings:
New York World's Fair (1939-1940 : New York, N.Y.)--History.
New York World's Fair (1964-1965 : New York, N.Y.)--History.
Princeton subject headings:
New York World's Fair (1939-1940 : New York, N.Y.)--History.
New York World's Fair (1964-1965 : New York, N.Y.)--History.