Columbia subject headings:
Architecture--Russia (Federation)--Saint Petersburg Region.
Parks--Russia (Federation)--Saint Petersburg Region.
Harvard subject headings:
Architecture, Modern--Russia (Federation)--Saint Petersburg.
Architecture--Russia (Federation)--Saint Petersburg
Parks--Russia (Federation)--Saint Petersburg.
Princeton subject headings:
Architecture, Modern--Russia (Federation)--Saint Petersburg Metropolitan Area.
Architecture--Russia (Federation)--Saint Petersburg Metropolitan Area.
Parks--Russia (Federation)--Saint Petersburg Metropolitan Area.