Columbia subject headings:
Perugia (Italy)--Genealogy.
Perugia (Italy)--History--Sources.
Perugia (Italy)--Population--History--Sources.
Taxation--Italy--Perugia--History--Sources.
Taxation--Italy--Perugia--History.
Taxation--Italy--Perugia--Lists.
Harvard subject headings:
Perugia (Italy)--Genealogy--Sources.
Perugia (Italy)--History--Sources.
Perugia (Italy)--Population--History--Sources.
Taxation--Italy--Perugia--History--Sources.
Taxation--Italy--Perugia--History.
Taxation--Italy--Perugia--Lists.
Princeton subject headings:
Taxation--Italy--Perugia--History--Sources.