APA (7th ed.) Citation

Gardner, E. S. (1935). The case of the caretaker's cat. Grosset.

Chicago Style (17th ed.) Citation

Gardner, Erle Stanley. The Case of the Caretaker's Cat. New York: Grosset, 1935.

MLA (9th ed.) Citation

Gardner, Erle Stanley. The Case of the Caretaker's Cat. Grosset, 1935.