APA

Berdiaev N. A., . (1939). Spirit and reality. London: G. Bles.

Chicago

Berdiaev Nikolai Aleksandrovich, . 1939. Spirit and reality. London: G. Bles.

Harvard

Berdiaev N. A., . (1939). Spirit and reality. London: G. Bles.

MLA

Berdiaev Nikolai Aleksandrovich, . Spirit and reality. London: G. Bles. 1939.