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