Columbia subject headings:
Architects--United States.
Architectural firms--United States.
Architecture, American--Pictorial works.
Architecture, Modern--20th century--Pictorial works.
RTKL Associates.
Harvard subject headings:
Architects--United States
Architectural firms--United States.
Architecture, American--Pictorial works.
Architecture--United States--History--20th century
RTKL Associates.
Princeton subject headings:
Architects--United States.
Architectural firms--United States.
Architecture, American--Pictorial works.
Architecture, Modern--20th century--Pictorial works.
RTKL Associates.