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Ruminations on the USSR
O'Brien, John C., (1994)
From socialism to capitalism : eight essays
Kornai, János, (2008)
Provalăt na socializma prez XX vek : analiz na pričinite i posledicite ot kracha na socialističeskite eksperimenti
Gribačev, Dimităr Ignatov, (1998)
The conscience of the revolution : communist opposition in Soviet Russia
Daniels, Robert Vincent, (1988)
Communism and the world
Daniels, Robert Vincent, (1984)
A documentary history of communism