Columbia subject headings:
Harvard subject headings:
Famines--Russia--History--19th century--Congresses.
Famines--Russia--History--20th century--Congresses.
Famines--Soviet Union--History--Congresses.
Princeton subject headings:
Famines--Russia--History--19th century--Congresses.
Famines--Russia--History--20th century--Congresses.
Famines--Soviet Union--History--Congresses.