APA
Berdyaev N., . (1939). Spirit and Reality. London: Geoffrey Bles.
Chicago
Berdyaev Nicolas, . 1939. Spirit and Reality. London: Geoffrey Bles.
Harvard
Berdyaev N., . (1939). Spirit and Reality. London: Geoffrey Bles.
MLA
Berdyaev Nicolas, . Spirit and Reality. London: Geoffrey Bles. 1939.
