Columbia subject headings:
Harvard subject headings:
Glasnost.
Gorbachev, Mikhail Sergeevich, 1931-
Lenin, Vladimir Ilʹich, 1870-1924
Soviet Union--Politics and government--1985-1991.
Princeton subject headings:
Glasnost.
Gorbachev, Mikhail Sergeevich, 1931-2022.
Lenin, Vladimir Ilʹich, 1870-1924.
Soviet Union--Politics and government--1985-1991.