Columbia subject headings:
Architecture--Saudi Arabia.
Building, Adobe--Saudi Arabia.
Harvard subject headings:
Architecture--Arid regions--Saudi Arabia--Najd.
Architecture--Saudi Arabia.
Building, Adobe--Saudi Arabia--Najd.
Building, Adobe--Saudi Arabia.
Farmhouses--Conservation and restoration--Saudi Arabia--Najd.
Islamic architecture--Saudi Arabia--Najd.
Vernacular architecture--Saudi Arabia--Najd.
Vernacular architecture--Saudi Arabia.
Princeton subject headings:
Architecture--Saudi Arabia.
Building, Adobe--Saudi Arabia.
Vernacular architecture--Saudi Arabia.