Columbia subject headings:
Harvard subject headings:
Organ (Musical instrument)--Construction--Italy--History.
Organ (Musical instrument)--Construction--Italy--Padua.
Organ (Musical instrument)--Italy--Padua.
Organ builders--Italy.
Princeton subject headings:
Organ (Musical instrument)--Construction--Italy--History.
Organ (Musical instrument)--Construction--Italy--Padua.
Organ (Musical instrument)--Italy--Padua.
Organ builders--Italy.