Columbia subject headings:
Harvard subject headings:
Economics--Russia--History--20th century.
Economists--Russia--Biography.
Prokopovich, S. N. (Sergeĭ Nikolaevich), 1871-1955.
Princeton subject headings:
Economics--Soviet Union--History.
Economists--Russia--Biography.
Economists--Soviet Union--Biography.
Exiles--Russia.
Politicians--Soviet Union--Biography.
Prokopovich, S. N. (Sergeĭ Nikolaevich), 1871-1955.
Russians--Europe.
Soviet Union--Politics and government.