Columbia subject headings:
Russia (Federation)--Statistics--Periodicals.
Saint Petersburg (Russia)--Statistics--Periodicals.
Soviet Union, Northwestern--Statistics--Periodicals.
Harvard subject headings:
Russia, Northwestern--Economic conditions--Statistics--Periodicals.
Saint Petersburg (Russia)--Economic conditions--Statistics--Periodicals.
Princeton subject headings:
Russia, Northwestern--Economic conditions--Statistics--Periodicals.
Saint Petersburg (Russia)--Economic conditions--Statistics--Periodicals.