Cita APA (7a ed.)

Biggers, E. D. (1940). The house without a key. Pocket Books.

Cita Chicago Style (17a ed.)

Biggers, Earl Derr. The House Without a Key. Nueva York: Pocket Books, 1940.

Cita MLA (9a ed.)

Biggers, Earl Derr. The House Without a Key. Pocket Books, 1940.