Columbia subject headings:
Harvard subject headings:
Public welfare--Soviet Union--History.
Social security--Law and legislation--Soviet Union--History.
Social security--Soviet Union--History.
Princeton subject headings:
Human services--Soviet Union.
Pensions--Soviet Union.
Social security--Soviet Union.
Soviet Union--Politics and government--1917-1936.
Soviet Union--Social conditions--1917-1945.
Soviet Union--Social policy.