Columbia subject headings:
Akademii︠a︡ nauk SSSR.
Learning and scholarship--Soviet Union.
Research institutes--Soviet Union.
Harvard subject headings:
Akademii︠a︡ nauk SSSR--History.
Research--Soviet Union--History--20th century.
Princeton subject headings:
Akademii︠a︡ nauk SSSR--History.
Research--Soviet Union--History--20th century.