Koestler, A., Wright, R., Fischer, L., Silone, I., Gide, A., Spender, S., & Crossman, R. (1952). The God that failed: Six famous men tell how they changed their minds about communism (7e dr.). New York: Bantam Books.

Koestler, Arthur, Richard Wright, Louis Fischer, Ignazio Silone, André Gide, Stephen Spender, agus Richard Crossman. The God That Failed: Six Famous Men Tell How They Changed Their Minds About Communism. 7e dr. New York: Bantam Books, 1952.

Koestler, Arthur, et al. The God That Failed: Six Famous Men Tell How They Changed Their Minds About Communism. 7e dr. New York: Bantam Books, 1952.