Columbia subject headings:
Harvard subject headings:
Emilia-Romagna (Italy)--History--Sources--Bibliography.
Italian periodicals--Italy--Emilia-Romagna--Bibliography.
Princeton subject headings:
Emilia-Romagna (Italy)--History--Sources--Bibliography.
Emilia-Romagna (Italy)--Imprints.
Serial publications--Italy--Emilia-Romagna--Bibliography.