Columbia subject headings:
Harvard subject headings:
Abbadia a Isola--History--Sources.
Abbadia a Isola--History.
Benedictines--Italy--Tuscany--History--Sources.
Benedictines--Italy--Tuscany--History.
Tuscany (Italy)--Church history--Sources.
Tuscany (Italy)--Church history.
Princeton subject headings:
Abbadia a Isola--History--Sources.
Abbadia a Isola--History.
Benedictines--Italy--Tuscany--History--Sources.
Benedictines--Italy--Tuscany--History.
Tuscany (Italy)--Church history--Sources.
Tuscany (Italy)--Church history.