Columbia subject headings:
Apartment houses, Cooperative--History.
Apartment houses, Cooperative--Switzerland--Zurich--Case studies.
Architecture, Domestic--Switzerland--Zurich--Case studies.
Housing, Cooperative--History.
Housing, Cooperative--Switzerland--Zurich--Case studies.
Harvard subject headings:
Apartment houses, Cooperative--History.
Apartment houses, Cooperative--Switzerland--Zurich--Case studies.
Architecture, Domestic--Switzerland--Zurich--Case studies.
Housing, Cooperative--History.
Housing, Cooperative--Switzerland--Zurich--Case studies.
Princeton subject headings:
Apartment houses, Cooperative--History.
Apartment houses, Cooperative--Switzerland--Zurich--Case studies.
Architecture, Domestic--Switzerland--Zurich--Case studies.
Case studies.
Housing, Cooperative--History.
Housing, Cooperative--Switzerland--Zurich--Case studies.