Columbia subject headings:
Architectural design--History--20th century.
Architectural design--Periodicals--History.
Periodicals.
Structural engineering--History--20th century.
Structural engineering--Periodicals--History.
Harvard subject headings:
Architectural design--History--20th century.
Architectural design--Periodicals--History.
Perspecta--History.
Structural engineering--History--20th century.
Structural engineering--Periodicals--History.
Princeton subject headings:
Architectural design--History--20th century.
Architectural design--Periodicals--History.
Perspecta.
Structural engineering--History--20th century.
Structural engineering--Periodicals--History.