Columbia subject headings:
Harvard subject headings:
Communism--Europe, Eastern--History--20th century
Communist parties--Europe, Eastern--History--20th century.
Reconstruction (1914-1939)--Europe, Eastern.
Princeton subject headings:
Communism--Europe, Eastern--History--20th century.
Communist parties--Europe, Eastern--History--20th century.
Reconstruction (1914-1939)--Europe, Eastern.