Columbia subject headings:
Argentina--Foreign relations--Soviet Union--Sources.
Russia--Foreign relations--1881-1894--Sources.
Russia--Foreign relations--1894-1917--Sources.
Soviet Union--Foreign relations--Argentina--Sources.
Soviet Union--Foreign relations--Sources.
Harvard subject headings:
Argentina--Relations--Soviet Union--Sources.
Soviet Union--Relations--Argentina--Sources.
Princeton subject headings:
Argentina--Foreign relations--Soviet Union--Sources.
Russia--Foreign relations--1881-1894--Sources.
Russia--Foreign relations--1894-1917--Sources.
Soviet Union--Foreign relations--Argentina--Sources.
Soviet Union--Foreign relations--Sources.