Columbia subject headings:
Harvard subject headings:
Gorbachev, Mikhail Sergeevich, 1931-
Gorbachev, Mikhail Sergeevich, 1931---Anniversaries, etc.
Heads of state--Soviet Union--Biography.
Mezhdunarodnyĭ fond sot͡sialʹno-ėkonomicheskikh i politologicheskikh issledovaniĭ.
Soviet Union--History--1985-1991.
Soviet Union--Politics and government--1985-1991.
Princeton subject headings:
Gorbachev, Mikhail Sergeevich, 1931-2022--Anniversaries, etc.
Heads of state--Soviet Union--Biography.
Mezhdunarodnyĭ fond sot︠s︡ialʹno-ėkonomicheskikh i politologicheskikh issledovaniĭ.