Columbia subject headings:
Barrier-free design--United States--Catalogs.
Dwellings--Barrier-free design--United States--Catalogs.
Housing, Single family--United States--Designs and plans--Catalogs.
Harvard subject headings:
Architecture, Domestic--United States
Barrier-free design--United States.
Housing--United States
Princeton subject headings:
Barrier-free design--United States--Catalogs.
Catalogs.
Dwellings--Barrier-free design--United States--Catalogs.
Housing, Single family--United States--Designs and plans--Catalogs.