APA (7th ed.) Citation

Koestler, A. (1974). The heel of Achilles: Essays 1968-1973 ([1st ed.].). Random House.

Chicago Style (17th ed.) Citation

Koestler, Arthur. The Heel of Achilles: Essays 1968-1973. [1st ed.]. New York: Random House, 1974.

MLA (9th ed.) Citation

Koestler, Arthur. The Heel of Achilles: Essays 1968-1973. [1st ed.]. Random House, 1974.