Columbia subject headings:
Harvard subject headings:
Cultural pluralism--Portugal--Lisbon.
Immigrants--Portugal--Lisbon--Social conditions.
Lisbon (Portugal)--Ethnic relations.
Princeton subject headings:
Cultural pluralism--Portugal--Lisbon.
Immigrants--Portugal--Lisbon--Economic conditions.
Immigrants--Portugal--Lisbon--Social conditions.
Lisbon (Portugal)--Ethnic relations.