Columbia subject headings:
Germany--Foreign economic relations--Russia--Sources.
Germany--Foreign relations--1888-1918--Sources.
Russia--Foreign economic relations--Germany--Sources.
Harvard subject headings:
Germany--Foreign economic relations--Russia--Sources.
Germany--Foreign relations--1888-1918--Sources.
Russia--Foreign economic relations--Germany--Sources.
Princeton subject headings:
Germany--Economic conditions--1888-1918--Sources.
Germany--Foreign economic relations--Russia--Sources.
Germany--Foreign relations--1888-1918--Sources.
Russia--Economic conditions--1861-1917--Sources.
Russia--Foreign economic relations--Germany--Sources.
Russia--Foreign relations--1894-1917--Sources.