So︠t︡sialʹna︠i︡a revol︠i︡u︠t︡si︠i︡a : voprosy teorii : sbornik stateĭ - Zamaleev, A. F. (Aleksandr Fazlaevich); Komarov, Viktor Dmitrievich ("Nauka," Leningradskoe otd-nie, 1989)