Columbia subject headings:
Former Soviet republics--Politics and government--Sources.
Gorbachev, Mikhail Sergeevich, 1931-2022.
Soviet Union--Politics and government--1985-1991--Sources.
Harvard subject headings:
Former Soviet republics--Politics and government--Sources.
Gorbachev, Mikhail Sergeevich, 1931-
Soviet Union--Politics and government--1985-1991--Sources.
Princeton subject headings:
Former Soviet republics--Politics and government--Sources.
Gorbachev, Mikhail Sergeevich, 1931-2022.
Soviet Union--Politics and government--1985-1991--Sources.