Columbia subject headings:
Argentina--Politics and government--20th century.
Argentina--Relations--Soviet Union.
Partido Comunista de la Argentina.
Soviet Union--Relations--Argentina.
Harvard subject headings:
Argentina--Politics and government--20th century.
Argentina--Relations--Soviet Union.
Partido Comunista de la Argentina.
Soviet Union--Relations--Argentina.
Princeton subject headings:
Argentina--Relations--Soviet Union.
Soviet Union--Relations--Argentina.