Columbia subject headings:
Harvard subject headings:
Architecture--Austria--Vienna--Guidebooks.
Vienna (Austria)--Buildings, structures, etc.--Guidebooks.
Vienna (Austria)--Guidebooks.
Princeton subject headings:
Architecture--Austria--Vienna--Guidebooks.
Art, Austrian--Austria--Vienna--Guidebooks.
Vienna (Austria)--Buildings, structures, etc.--Guidebooks.
Vienna (Austria)--Description and travel--Guidebooks.