Columbia subject headings:
Hungary--Foreign relations--Soviet Union--Sources.
Soviet Union--Foreign relations--1975-1985--Sources.
Soviet Union--Foreign relations--Hungary--Sources.
Harvard subject headings:
Hungary--Foreign relations--Soviet Union--Sources.
Soviet Union--Foreign relations--1975-1985--Sources.
Soviet Union--Foreign relations--Hungary--Sources.
Princeton subject headings:
Hungary--Foreign relations--Soviet Union--Sources.
Soviet Union--Foreign relations--Hungary--Sources.