APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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