Cita APA (7a ed.)

Enid Blyton. (1943). The Mystery of the Secret Room. Hodder Children's Books.

Cita Chicago Style (17a ed.)

Enid Blyton. The Mystery of the Secret Room. New York: Hodder Children's Books, 1943.

Cita MLA (9a ed.)

Enid Blyton. The Mystery of the Secret Room. Hodder Children's Books, 1943.