Columbia subject headings:
Architecture--United States--History--20th century.
Kahn, Louis I., 1901-1974--Criticism and interpretation.
Space (Architecture)--United States.
Symbolism in architecture--United States.
Harvard subject headings:
Architects--United States
Architecture--United States--History--20th century
Kahn, Louis I. 1901-1974--Criticism and interpretation.
Princeton subject headings: