Columbia subject headings:
Architecture--Switzerland--History--20th century--Catalogs.
Otto + Partner--Catalogs.
Otto, Rolf G. (Rolf Georg), 1924-2003--Catalogs.
Harvard subject headings:
Architects--Switzerland.
Architectural firms--Switzerland.
Architecture--Switzerland--20th century.
Otto, Rolf G. (Rolf Georg), 1924-2003--Criticism and interpretation.
Princeton subject headings: