Columbia subject headings:
Harvard subject headings:
Italy--Antiquities--Congresses.
Macerata (Italy : Province)--Antiquities--Congresses.
Macerata (Italy : Province)--History--Congresses.
Princeton subject headings:
Italy--Antiquities--Congresses.
Macerata (Italy : Province)--Antiquities--Congresses.
Macerata (Italy : Province)--History--Congresses.