So︠t︡sialʹno-ėkonomicheska︠i︡a istori︠i︡a Rossii : izbrannye trudy - Druzhinin, Nikolaĭ Mikhaĭlovich, 1886- (Druzhinin, Nikolaĭ Mikhaĭlovich, 1886- Selections. 1985., 1987)