APA (7th ed.) Citation

Koestler, A. (1973). The case of the midwife toad. Vintage Books.

Chicago Style (17th ed.) Citation

Koestler, Arthur. The Case of the Midwife Toad. New York: Vintage Books, 1973.

MLA (9th ed.) Citation

Koestler, Arthur. The Case of the Midwife Toad. Vintage Books, 1973.

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