Columbia subject headings:
Harvard subject headings:
Registers of births, etc.--Italy--Seggiano.
Seggiano (Italy)--Genealogy.
Seggiano (Italy)--History--Sources.
Princeton subject headings:
Seggiano (Italy)--History--Sources.
Seggiano (Italy)--Population--History.
Seggiano (Italy)--Statistics, Vital--History.