Columbia subject headings:
Gorbachev, Mikhail Sergeevich, 1931-
Soviet Union--History--1953-1985.
Harvard subject headings:
Gorbachev, Mikhail Sergeevich, 1931-
Soviet Union--History--1953-1985.
Princeton subject headings:
Gorbachev, Mikhail Sergeevich, 1931-2022.
Soviet Union--History.