Columbia subject headings:
Puglia (Italy)--Historiography--Congresses.
Puglia (Italy)--History--Congresses.
Harvard subject headings:
Puglia (Italy)--Historiography--Congresses.
Puglia (Italy)--History--19th century--Congresses.
Puglia (Italy)--History--Congresses.
Princeton subject headings:
Puglia (Italy)--Historiography--Congresses.
Puglia (Italy)--History--19th century--Congresses.