Marx, Engels, Lenin : freedom and democracy under socialism.
Marx, Karl,1818-1883.
Engels, Friedrich,1820-1895.
Lenin, Vladimir Ilʹich,1870-1924.
Moscow :  Novosti Press Agency, 
1975.
Original Russian title: O svobode i demokratii pri sot︠s︡ializme.
Communism.
Capitalism.
Dictatorship of Proletariat.