APA (7th ed.) Citation

Koestler, A. (1979). Janus: A summing up (1st Vintage Books ed.). Vintage Books.

Chicago Style (17th ed.) Citation

Koestler, Arthur. Janus: A Summing Up. 1st Vintage Books ed. New York: Vintage Books, 1979.

MLA (8th ed.) Citation

Koestler, Arthur. Janus: A Summing Up. 1st Vintage Books ed. Vintage Books, 1979.

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