Columbia subject headings:
Architecture, Domestic--Italy--Parma.
Architecture--Italy--Parma.
Palaces--Italy--Parma.
Parma (Italy)--Buildings, structures, etc.
Harvard subject headings:
Architecture, Domestic--Italy--Parma.
Mansions--Italy--Parma.
Parma (Italy)--Buildings, structures, etc.
Princeton subject headings:
Architecture, Domestic--Italy--Parma.
Mansions--Italy--Parma.
Parma (Italy)--Buildings, structures, etc.