Columbia subject headings:
Architecture--Russia (Federation)--Saint Petersburg.
Art--Russia (Federation)--Saint Petersburg.
Saint Petersburg (Russia)--Buildings, structures, etc.
Saint Petersburg (Russia)--Description and travel.
Harvard subject headings:
Architecture--Russia (Federation)--Saint Petersburg
Art--Russia (Federation)--Saint Petersburg.
Saint Petersburg (Russia)--Buildings, structures, etc.
Saint Petersburg (Russia)--Description and travel.
Princeton subject headings: