Columbia subject headings:
Gardens--Italy--Parma--History.
Giardino ducale di Parma (Parma, Italy)--History.
Parma (Italy)--Description and travel.
Harvard subject headings:
Gardens--Italy--Parma.
Giardino ducale (Parma, Italy)
Palazzo del giardino (Parma, Italy)
Princeton subject headings:
Gardens--Italy--Parma--Pictorial works.
Giardino Ducale (Parma, Italy)--Pictorial works.