Columbia subject headings:
Puglia (Italy)--Economic conditions--Congresses.
Puglia (Italy)--History--19th century--Congresses.
Puglia (Italy)--Politics and government--Congresses.
Harvard subject headings:
Puglia (Italy)--Economic conditions--Congresses.
Puglia (Italy)--History--Congresses.
Puglia (Italy)--Politics and government--Congresses.
Puglia (Italy)--Social conditions--Congresses.
Princeton subject headings:
Puglia (Italy)--Economic conditions--Congresses.
Puglia (Italy)--History--Congresses.
Puglia (Italy)--Social conditions--Congresses.