Columbia subject headings:
Harvard subject headings:
China--Economic conditions--1949-1976.
China--Social conditions.
Famines--China--History--20th century.
Famines--China--History.
Famines--Soviet Union--History.
Soviet Union--Economic conditions--1917-1945.
Soviet Union--Economic conditions--1945-1955.
Soviet Union--Social conditions.
Princeton subject headings:
China--Economic conditions--1949-1976.
Famines--China--History--20th century.
Famines--Soviet Union--History.
Soviet Union--Economic conditions--1917-1945.
Soviet Union--Economic conditions--1945-1955.