Sot︠s︡ial'no-ekonomicheskoe razvitie Rossii sbornik statei k 100-letiiu so dni︠a︡ rozhdenii︠a︡ Nikolai︠a︡ Mikhailovicha Druzhinina
Druzhinin, Nikolaĭ Mikhaĭlovich,1886-1986.

1986
Feudalism