Columbia subject headings:
Architecture--United States--History--19th century.
Architecture--United States--History--20th century.
Smith, Hinchman & Grylls Associates.
Harvard subject headings:
Architecture--United States--History--19th century
Architecture--United States--History--19th century.
Architecture--United States--History--20th century
Architecture--United States--History--20th century.
Smith, Hinchman & Grylls Associates.
Princeton subject headings:
Architecture--United States--History--19th century.
Architecture--United States--History--20th century.
Smith, Hinchman & Grylls Associates.