APA (7th ed.) Citation

Ouspensky, P. (1981). The psychology of man's possible evolution. Vintage books.

Chicago Style (17th ed.) Citation

Ouspensky, P.D. The Psychology of Man's Possible Evolution. New York: Vintage books, 1981.

MLA (8th ed.) Citation

Ouspensky, P.D. The Psychology of Man's Possible Evolution. Vintage books, 1981.

Warning: These citations may not always be 100% accurate.