APA (7th ed.) Citation

Koestler, A. (1973). The call girls: A tragi-comedy (1st American ed.). Random House.

Chicago Style (17th ed.) Citation

Koestler, Arthur. The Call Girls: A Tragi-comedy. 1st American ed. New York: Random House, 1973.

MLA (9th ed.) Citation

Koestler, Arthur. The Call Girls: A Tragi-comedy. 1st American ed. Random House, 1973.