Columbia subject headings:
Socialism--History--20th century.
Soviet Union--Foreign relations--1975-1985.
Soviet Union--Foreign relations--1985-1991.
Soviet Union--Politics and government--1953-1985.
Soviet Union--Politics and government--1985-1991.
Harvard subject headings:
Socialism--History--20th century
Soviet Union--Foreign relations--1975-1985.
Soviet Union--Foreign relations--1985-1991.
Soviet Union--Politics and government--1953-1985.
Soviet Union--Politics and government--1985-1991.
Princeton subject headings:
Socialism--History--20th century.
Soviet Union--Foreign relations--1975-1985.
Soviet Union--Foreign relations--1985-1991.
Soviet Union--Politics and government--1953-1985.
Soviet Union--Politics and government--1985-1991.