Title: Zhiznʹ i dei︠a︡telʹnostʹ russkogo filosofa i psikhologa I.P. Chetverikova v nauke i istorii
Subjects: Philosophers, Biography, Religion, Philosophy, History, Psychologists, Russian Philosophy, Personalism
Places: Soviet Union, Russia
People: I. P. Chetverikov
Time periods: 20th century, 19th century