APA (7th ed.) Citation

Boucher, A. (1941). The case of the solid key. Simon & Schuster.

Chicago Style (17th ed.) Citation

Boucher, Anthony. The Case of the Solid Key. New York: Simon & Schuster, 1941.

MLA (9th ed.) Citation

Boucher, Anthony. The Case of the Solid Key. Simon & Schuster, 1941.