Columbia subject headings:
Apartment houses--Europe--Designs and plans.
Architecture, Domestic--Social aspects--Europe.
Galleries (Architecture)--Europe--Designs and plans.
Harvard subject headings:
Apartment houses--Europe--Designs and plans.
Architecture, Domestic--Social aspects--Europe.
Balconies.
Galleries (Architecture)--Europe--Designs and plans.
Princeton subject headings:
Apartment houses, Cooperative--Europe.
Apartment houses--Europe--Design and construction.
Galleries (Architecture)--Europe.
Planned communities--Europe.