APA (7th ed.) Citation

Gardner, E. S. (1959). The case of the angry mourner. Thriller Book Club.

Chicago Style (17th ed.) Citation

Gardner, Erle Stanley. The Case of the Angry Mourner. London: Thriller Book Club, 1959.

MLA (8th ed.) Citation

Gardner, Erle Stanley. The Case of the Angry Mourner. Thriller Book Club, 1959.