Columbia subject headings:
Apartment houses--Russia (Federation)--Saint Petersburg--History.
Mansions--Russia (Federation)--Saint Petersburg--History.
Saint Petersburg (Russia)--Buildings, structures, etc.
Harvard subject headings:
Apartment houses--Russia (Federation)--Saint Petersburg--History.
Mansions--Russia (Federation)--Saint Petersburg--History.
Saint Petersburg (Russia)--Buildings, structures, etc.
Princeton subject headings:
Apartment houses--Russia (Federation)--Saint Petersburg--History.
Mansions--Russia (Federation)--Saint Petersburg--History.
Saint Petersburg (Russia)--Buildings, structures, etc.