Columbia subject headings:
Puglia (Italy)--Economic conditions.
Puglia (Italy)--History.
Puglia (Italy)--Social conditions.
Rome--History--Empire, 284-476.
Harvard subject headings:
Puglia (Italy)--Economic conditions--History.
Puglia (Italy)--Population--History.
Puglia (Italy)--Social conditions--History.
Princeton subject headings:
Puglia (Italy)--Economic conditions.
Puglia (Italy)--Population--History.
Puglia (Italy)--Social conditions.