Columbia subject headings:
Barrier-free design.
Dwellings--Barrier-free design.
People with disabilities--Dwellings.
Harvard subject headings:
Barrier-free design.
Dwellings--Barrier-free design
People with disabilities--Dwellings
Princeton subject headings:
Barrier-free design.
Dwellings--Barrier-free design.
People with disabilities--Dwellings.