Columbia subject headings:
Architecture, Modern--19th century.
Architecture, Modern--20th century.
Architecture--Austria--History--19th century.
Architecture--Austria--History--20th century.
Decoration and ornament, Architectural.
Harvard subject headings:
Architecture, Modern--19th century
Architecture, Modern--20th century--Austria.
Architecture, Modern--21st century
Architecture--Austria--History--19th century.
Architecture--Austria--History--20th century
Decoration and ornament, Architectural.
Princeton subject headings:
Architecture, Modern--19th century.
Architecture, Modern--20th century.
Architecture--Austria--19th century.
Architecture--Austria--History--20th century.
Decoration and ornament, Architectural.