Columbia subject headings:
Apartment houses--Portugal--Lisbon--History.
Architecture, Domestic--Portugal--Lisbon.
Lisbon (Portugal)--Buildings, structures, etc.
Harvard subject headings:
Apartment houses--Portugal--Lisbon--History.
Architecture, Domestic--Portugal--Lisbon.
Lisbon (Portugal)--Buildings, structures, etc.
Princeton subject headings:
Apartment houses--Portugal--Lisbon--History.
Architecture, Domestic--Portugal--Lisbon.
Lisbon (Portugal)--Buildings, structures, etc.