Columbia subject headings:
Architecture--United States--History--20th century--Exhibitions.
Wright, Frank Lloyd, 1867-1959--Exhibitions.
Harvard subject headings:
Architecture--United States--History--20th century
Architecture--United States--History--20th century--Exhibitions
Wright, Frank Lloyd, 1867-1959--Exhibitions.
Princeton subject headings:
Wright, Frank Lloyd, 1867-1959--Exhibitions.