BettelheimCharles. 1976. Class Struggles in the USSR: First Period, 1917-23. New York: Monthly Review Press.
2.
BettelheimCharles. 1978. Class Struggles in the USSR: Second Period, 1923-1930. New York: Monthly Review Press.
3.
BoffaGiuseppe. 1976. Storia dell'Unione Sovietica. Milano: Mondadori.
4.
CameronKenneth Neill. 1987. Stalin: Man of Contradiction. Toronto: NC Press, Ltd.
5.
CarrE. H.1950. The Bolshevik Revolution, 1917-1923. Vol. I. Middlesex: Penguin.
6.
CarrE. H.1952. The Bolshevik Revolution, 1917-1923. Vol. II. Middlesex: Penguin.
7.
CarrE. H.1953. The Bolshevik Revolution, 1917-1923. Vol. III. Middlesex: Penguin.
8.
CarrE. H. and DaviesR. W.. 1969. A History of Soviet Russia: Foundations of a Planned Economy, 1926-1929. Vol. 1. New York: Macmillan.
9.
ClaudinFernando. 1975. The Communist Movement. Vol. 2. New York: Monthly Review Press.
10.
CohenStephen F.1973. Bukharin and the Bolshevik Revolution. Baltimore: Penguin Books.
11.
ConquestRobert. 1973. The Great Terror. New York.
12.
DaviesJoseph E.1941. Mission to Moscow. New York: Simon & Schuster.
13.
DaviesR. W.1980. The Industrialization of Soviet Russia: The Socialist Offensive The Collectivization of Soviet Agriculture. Cambridge: Harvard University Press.
14.
DeutscherIsaac. 1960. Stalin: A Political Biography. New York: Vintage.