Columbia subject headings:
Harvard subject headings:
Excise tax--Italy--Sicily--History.
Excise tax--Italy--Sicily--Statistics.
Local government--Italy--Sicily--History.
Oligarchy--Italy--Sicily--History.
Sicily (Italy)--Politics and government--1282-1870
Princeton subject headings:
Excise tax--Italy--Sicily--History.
Excise tax--Italy--Sicily--Statistics.
Local government--Italy--Sicily--History.
Oligarchy--Italy--Sicily--History.
Sicily (Italy)--Politics and government--1282-1870.