Bibliography
- Daniels, Robert. The Conscience of the Revolution: Communist Opposition in Soviet Russia. Cambridge, Mass., 1960; revised edition, Boulder, Col., 1988.
- Holmes, Larry E. For the Revolution Redeemed: The Workers Opposition in the Bolshevik Party, 1919-1921. The Carl Beck Papers in Russian and East European Studies, no. 802 (1990).
- Kollontai, Alexandra. Rabochaya oppozitsiya. Moscow, 1921. Translated into English by Solidarity in London and the IWW in the United States.
- Sorenson, Jay. The Life and Death of Soviet Trade Unionism: 1917-1928. New York, 1969.
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