Columbia subject headings:
Great Britain--Commerce--History--18th century.
Great Britain--Commerce--Russia.
Russia--Commerce--Great Britain.
Russia--Commerce--History--18th century.
Harvard subject headings:
Great Britain--Commerce--Russia--History--18th century.
Russia--Commerce--Great Britain--History--18th century.
Princeton subject headings:
Great Britain--Commerce--Russia--History--18th century.
Russia--Commerce--Great Britain--History--18th century.