Columbia subject headings:
Architecture--Human factors.
Barrier-free design for older people--Europe.
Housing policy--Europe.
Older people--Dwellings--Europe.
Harvard subject headings:
Architecture--Human factors
Barrier-free design for older people--Europe.
Housing policy--Europe.
Older people--Dwellings--Europe.
Princeton subject headings:
Architecture--Human factors.
Barrier-free design for older people--Europe.
Housing policy--Europe.
Older people--Europe--Dwellings.