Columbia subject headings:
Gorbachev, Mikhail Sergeevich, 1931-
International relations.
Soviet Union--Politics and government--1953-1985.
World politics--1985-1995.
Harvard subject headings:
Gorbachev, Mikhail Sergeevich, 1931-
International relations
Soviet Union
World politics--1985-1995
Princeton subject headings:
Gorbachev, Mikhail Sergeevich, 1931-2022.
International relations.
Soviet Union--Politics and government--1953-.
World politics--1985-1995.