Columbia subject headings:
Architecture--Austria--Vienna.
Architecture--Study and teaching (Higher)--Austria--Vienna.
City planning--Austria--Vienna.
Vienna (Austria)--Buildings, structures, etc.
Harvard subject headings:
Architecture--Austria--Vienna
Architecture--Study and teaching (Higher)--Austria--Vienna.
City planning--Austria--Vienna
Vienna (Austria)--Buildings, structures, etc.
Princeton subject headings:
Architecture, Modern--20th century--Austria--Vienna--Congresses.
Architecture, Modern--20th century--Europe--Congresses.
City planning--Austria--Vienna--Congresses.
City planning--Europe--Congresses.