Columbia subject headings:
Harvard subject headings:
Poland--Relations--Italy--Salento.
Polish people--Italy--Salento--History.
Salento (Italy)--Ethnic relations.
Salento (Italy)--Relations--Poland.
Princeton subject headings:
Poland--Relations--Italy--Salento.
Polish people--Italy--Salento--History.
Salento (Italy)--Ethnic relations.
Salento (Italy)--Relations--Poland.