Columbia subject headings:
Architecture--United States--History--20th century.
Gwathmey, Charles, 1938-2009.
Siegel, Robert, 1939-
Harvard subject headings:
Architecture, Modern--20th century--United States--Designs and plans.
Gwathmey Siegel Architects.
Gwathmey, Charles, 1938-
Siegel, Robert (Robert H.), 1939-
Princeton subject headings: