Columbia subject headings:
Great Britain--Foreign relations--Soviet Union.
Marx, Karl, 1818-1883.
Soviet Union--Foreign relations--Great Britain.
Harvard subject headings:
Great Britain--Foreign relations--Soviet Union.
Marx, Karl, 1818-1883
Soviet Union--Foreign relations--Great Britain.
Princeton subject headings:
Great Britain--Foreign relations--Soviet Union.
Marx, Karl, 1818-1883.
Soviet Union--Foreign relations--Great Britain.