Columbia subject headings:
Harvard subject headings:
Old age homes--Austria--Vienna--History.
Older people--Care--Austria--Vienna--History.
Older people--Housing--Austria--Vienna--History.
Older people--Institutional care--Austria--Vienna--History.
Older people--Services for--Austria--Vienna--History.
Princeton subject headings:
Older people--Housing--Austria--Vienna--History.
Older people--Institutional care--Austria--Vienna--History.
Older people--Services for--Austria--Vienna--History.