Columbia subject headings:
Harvard subject headings:
Cultural pluralism--Portugal--Lisbon Metropolitan Area--History.
Immigrants--Portugal--Lisbon Metropolitan Area--Pictorial works.
Immigrants--Portugal--Lisbon Metropolitan Area--Social life and customs.
Lisbon Metropolitan Area (Portugal)--Race relations.
Minorities--Portugal--Lisbon Metropolitan Area--Pictorial works.
Minorities--Portugal--Lisbon Metropolitan Area--Social life and customs.
Princeton subject headings:
Immigrants--Portugal--Lisbon Region--Pictorial works.
Immigrants--Portugal--Lisbon Region.
Lisbon Region (Portugal)--Emigration and immigration.
Minorities--Portugal--Lisbon Region--Pictorial works.
Minorities--Portugal--Lisbon Region.