Columbia subject headings:
Full employment policies--Soviet Union--History--20th century--Congresses.
Labor supply--Soviet Union--History--20th century--Congresses.
Harvard subject headings:
Full employment policies--Soviet Union--History--20th century--Congresses.
Labor supply--Soviet Union--History--20th century--Congresses.
Princeton subject headings:
Full employment policies--Soviet Union--History--20th century--Congresses.
Labor supply--Soviet Union--History--20th century--Congresses.