Columbia subject headings:
Architecture and society--Portugal.
Architecture, Domestic--Portugal--Porto--History--19th century.
Architecture, Domestic--Portugal--Porto--History--20th century.
Middle class--Portugal--Porto--History--19th century.
Middle class--Portugal--Porto--History--20th century.
Porto (Portugal)--Buildings, structures, etc.
Silva, António da, 1853-1909.
Harvard subject headings:
Architecture and society--Portugal.
Architecture, Domestic--Portugal--Porto--History--19th century.
Architecture, Domestic--Portugal--Porto--History--20th century.
Middle class--Portugal--Porto--History--19th century.
Middle class--Portugal--Porto--History--20th century.
Porto (Portugal)--Buildings, structures, etc.
Silva, António da, 1853-1909
Princeton subject headings:
Architecture and society--Portugal.
Architecture, Domestic--Portugal--Porto--History--19th century.
Architecture, Domestic--Portugal--Porto--History--20th century.
Middle class--Portugal--Porto--History--19th century.
Middle class--Portugal--Porto--History--20th century.
Porto (Portugal)--Buildings, structures, etc.
Silva, António da, 1853-1909.