Columbia subject headings:
Emilia-Romagna (Italy)--Historiography.
Emilia-Romagna (Italy)--History--Sources.
Historians--Italy--Emilia-Romagna--History.
Harvard subject headings:
Princeton subject headings:
Emilia-Romagna (Italy)--Historiography.
Emilia-Romagna (Italy)--History--Sources.
Historians--Italy--Emilia-Romagna--History.